Detecting quantum resources in a semi-device-independent framework
Author(s): Shubhayan Sarkar and Chandan DattaAddressing the question whether every quantum resource can be detected without any prior information about it, the authors develop a method to identify hid...
2025-04-08 10:00:00
Author(s): P. Céspedes, F. H. Holik, and A. P. MajteyWhile the concept of entanglement for distinguishable particles is well established, defining entanglement and nonlocality in systems of indistingu...
2025-04-08 10:00:00
Author(s): Mona Sobhani, Yahui Chai, Tobias Hartung, and Karl JansenThis paper presents a hybrid quantum-classical approach to prime factorization. The proposed algorithm is based on the variational q...
2025-04-08 10:00:00
Second moment of Hafnians in Gaussian boson sampling
Author(s): Adam Ehrenberg, Joseph T. Iosue, Abhinav Deshpande, Dominik Hangleiter, and Alexey V. GorshkovThis paper addresses the question of exactly how to tell if Gaussian boson sampling gives a qua...
2025-04-08 10:00:00
Entanglement determination with a deep multiscale entanglement renormalization ansatz
Author(s): Kushagra Garg, Zeeshan Ahmed, and Andreas ThomasenWe study the deep multiscale entanglement renormalization Ansatz (DMERA) on quantum hardware and the causal cone of a subset of the qubits,...
2025-04-07 10:00:00
Author(s): Zi-Yu Xiong, Yong-Jun Xiao, Ye-Qi Zhang, and Qi-Liang HeWe investigate the effect of counter-rotating-wave terms on nonlocality and entanglement for three qubits coupled to a common bath fo...
2025-04-07 10:00:00
Selective continuous-variable quantum process tomography
Author(s): Virginia Feldman and Ariel BenderskyQuantum process tomography is a useful tool for characterizing quantum processes. This task is essential for the development of different areas, such as...
2025-04-04 10:00:00
Detectors for local discrimination of sets of generalized Bell states
Author(s): Cai-Hong Wang, Jiang-Tao Yuan, Ying-Hui Yang, Mao-Sheng Li, Shao-Ming Fei, and Zhi-Hao MaA fundamental problem in quantum information processing is the discrimination among a set of orthogo...
2025-04-04 10:00:00
Author(s): Andrew J. Shepherd and Ryan O. BehuninComplex quantum states of light are not only central to advancing our understanding of quantum mechanics, but are also necessary for a variety of quant...
2025-04-03 10:00:00
Phase-space analysis of Bell inequalities for mixed Gaussian states
Author(s): Gurpahul Singh, Kelly Wurtz, and Eduardo Martín-MartínezWe present a phase-space formalism to evaluate Bell inequality violations in continuous variable systems. By doing so we can generali...
2025-04-03 10:00:00
Protecting quantum information via many-body dynamical localization
Author(s): Ling-Zhi Tang, Dan-Wei Zhang, Hai-Feng Yu, and Z. D. WangThe authors explore many-body dynamical localization (MBDL) and dynamical decoupling in a clean quantum spin chain under periodic ki...
2025-04-02 10:00:00
Generally noise-resilient quantum gates for trapped ions
Author(s): Modesto Orozco-Ruiz, Wasim Rehman, and Florian MintertWe present an entangling gate scheme that achieves high-fidelity operations with excited motional states, despite multiple error source...
2025-04-02 10:00:00
Protecting entanglement witnesses with randomized measurements
Author(s): Jing-Tao Qiu, Wei-Jie Jiang, and Xiao-Dong YuEntanglement is one of the most prominent features of quantum mechanics and serves as an essential resource in quantum information science. Ther...
2025-04-01 10:00:00
Recovery of resources through sequential noisy measurements
Author(s): Sudipta Mondal, Pritam Halder, Amit Kumar Pal, and Aditi Sen(De)Noisy unsharp measurements incorporated in quantum information protocols may hinder performance, reducing the quantum advanta...
2025-04-01 10:00:00
Quantum imaginary time evolution and the unit-disk maximum independent set problem
Author(s): Victor A. Penas, Marcelo Losada, and Pedro W. LambertiIn this work we apply a procedure based on the quantum imaginary time evolution method to solve the unit-disk maximum independent set p...
2025-04-01 10:00:00
Perfect chiral quantum routing
Author(s): Simone Cavazzoni, Giovanni Ragazzi, Paolo Bordone, and Matteo G. A. ParisRouting classical and quantum information is a fundamental task for quantum information technologies and processes....
2025-03-31 10:00:00
Noise-adapted qudit codes for amplitude-damping noise
Author(s): Sourav Dutta, Debjyoti Biswas, and Prabha MandayamQuantum error correction (QEC) plays a critical role in preventing information loss in quantum systems and provides a framework for reliabl...
2025-03-31 10:00:00
Braiding Majorana zero modes in a two-dimensional grid structure
Author(s): Shilong Li, Linsheng Bao, Shipeng Huang, Jiayun Ning, Aoqian Shi, Peng Peng, and Jianjun LiuConstructing Majorana zero modes (MZMs) is one of the most promising schemes for achieving topolo...
2025-03-28 10:00:00
Enhanced compressive threshold quantum state tomography for qudit systems
Author(s): Giovanni Garberoglio, Maurizio Dapor, Diego Maragnano, Marco Liscidini, and Daniele BinosiWe propose an efficient quantum state tomography method inspired by compressed sensing and threshol...
2025-03-28 10:00:00
Nonconvex optimization strategy for computing convex-roof entanglement
Author(s): Jimmie Adriazola and Katarzyna RoszakWe develop a numerical methodology for the computation of entanglement measures for mixed quantum states. Using the well-known Schrödinger-Hughston-Jozs...
2025-03-28 10:00:00
Long-distance genuine multipartite entanglement between magnetic defects in spin chains
Author(s): Mirko Consiglio, Jovan Odavić, Riccarda Bonsignori, Gianpaolo Torre, Marcin Wieśniak, Fabio Franchini, Salvatore M. Giampaolo, and Tony J. G. ApollaroWe investigate the emergence and proper...
2025-03-28 10:00:00
Author(s): Jakub Czartowski and Karol ŻyczkowskiDesigns, structures connected to averaging with respect to a given measure using finite sets of points, have proven themselves to be invaluable tools ac...
2025-03-27 10:00:00
Symmetric measurement-induced lower bounds of concurrence
Author(s): Hao-Fan Wang and Shao-Ming FeiWe provide a class of lower bounds for concurrence based on symmetric measurements. We show that our lower bounds estimate the quantum entanglement better than...
2025-03-26 10:00:00
Generalized no-flipping theorem as a consequence of commutation of spacelike operations
Author(s): Anandamay Das Bhowmik, Tathagata Gupta, Preeti Parashar, Guruprasad Kar, and Manik BanikA quantum flipping device is a theoretical apparatus designed to transform an input quantum state, re...
2025-03-25 10:00:00
Quantum search with the signless Laplacian
Author(s): Molly E. McLaughlin and Thomas G. WongContinuous-time quantum walks are typically effected by either the discrete Laplacian or the adjacency matrix. In this paper, we explore a third option...
2025-03-25 10:00:00
Verifying energy-time entanglement via nonlocal dispersion cancellation
Author(s): Jin-Woo Chae, Heebong Seo, U-Shin Kim, and Yoon-Ho KimThe authors experimentally demonstrate direct verification of continuous-variable energy-time entanglement via nonlocal dispersion canc...
2025-03-25 10:00:00
Emergent non-Markovianity and dynamical quantification of the quantum switch
Author(s): Vishal Anand, Ananda G. Maity, Subhadip Mitra, and Samyadeb BhattacharyaWe investigate the dynamical aspects of the quantum switch and find a particular form of quantum memory emerging out...
2025-03-25 10:00:00
Improved performance of the Bacon-Shor code with Steane's syndrome extraction method
Author(s): Guillermo Escobar-Arrieta and Mauricio GutiérrezWe compare Steane's and Shor's syndrome extraction methods on the Bacon-Shor code. We propose a straightforward strategy based on postselecti...
2025-03-25 10:00:00
Photonic parameter-shift rule: Enabling gradient computation for photonic quantum computers
Author(s): Axel Pappalardo, Pierre-Emmanuel Emeriau, Giovanni de Felice, Brian Ventura, Hugo Jaunin, Richie Yeung, Bob Coecke, and Shane MansfieldWe present a method for gradient computation in quantu...
2025-03-25 10:00:00
Biased estimator channels for classical shadows
Author(s): Zhenyu Cai, Adrian Chapman, Hamza Jnane, and Bálint KoczorThe classical shadow framework is paired with the well-studied bias-variance tradeoff to further reduce the number of shots needed...
2025-03-21 10:00:00
Entanglement of assistance as a measure of multiparty entanglement
Author(s): Indranil Biswas, Atanu Bhunia, Subrata Bera, Indrani Chattopadhyay, and Debasis SarkarQuantifying multipartite entanglement poses a significant challenge in quantum information theory, prom...
2025-03-21 10:00:00
Measurement-device-independent entanglement witnesses with imprecise input states
Author(s): Xing-Chen Guo and Mao-Sheng LiMeasurement-device-independent entanglement witnesses (MDI-EWs) enable the detection of entanglement without relying on characterized measurements. However, en...
2025-03-21 10:00:00
Analysis of the relationship between imaginarity and entanglement
Author(s): Yanna Sun, Ruonan Ren, Yiran Wang, and Yongming LiImaginary numbers play an important role in physics, especially in quantum physics. They are not only a part of describing the dynamic beha...
2025-03-21 10:00:00
Logical coherence in two-dimensional compass codes
Author(s): Balint Pato, J. Wilson Staples, and Kenneth R. BrownTwo-dimensional compass codes are a family of quantum error-correcting codes that contain the Bacon-Shor codes, the $X$-Shor and $Z$-Shor...
2025-03-21 10:00:00
Hodge theory for entanglement cohomology
Author(s): Christian Ferko, Eashan Iyer, Kasra Mossayebi, and Gregor SanfeyWe explore and extend the application of homological algebra to describe quantum entanglement, initiated by Mainiero [arXiv:1...
2025-03-21 10:00:00
Stabilizer testing and central limit theorem
Author(s): Wenlong Sun, Yuanfeng Jin, Gang Lu, and Yang LiuIn this paper we introduce the concept of stabilizer convolution and demonstrate that the only convolutions that can be used for stability te...
2025-03-19 10:00:00
Error-mitigated photonic quantum circuit Born machine
Author(s): Alexia Salavrakos, Tigran Sedrakyan, James Mills, Shane Mansfield, and Rawad MezherThis work focuses on generative learning in the framework of photonic quantum computing. The authors prese...
2025-03-18 10:00:00
Qubit-state purity oscillations from anisotropic transverse noise
Author(s): David A. Rower, Kotaro Hida, Lamia Ateshian, Helin Zhang, Junyoung An, Max Hays, Sarah E. Muschinske, Christopher M. McNally, Samuel C. Alipour-Fard, Réouven Assouly, Ilan T. Rosen, Bethany...
2025-03-18 10:00:00
Topological quantum state transfer beyond the single-excitation assumption
Author(s): X. Z. Hao, X. Y. Zhang, and X. X. YiAs is well known, within the single-excitation subspace, the Su-Schrieffer-Heeger (SSH) model exhibits a remarkable ability to transfer an excitation fro...
2025-03-17 10:00:00
Machine learning meeting the Clauser-Horne-Shimony-Holt scenario
Author(s): Gabriel Pereira Alves, Nicolas Gigena, and Jędrzej KaniewskiIn this work we perform a comprehensive study of the machine learning (ML) methods for the purpose of characterizing the quantum...
2025-03-17 10:00:00
Impact of reservoir squeezing on quantum-memory-assisted entropic uncertainty relations
Author(s): Hamad Ali, Abdul Basit, and Peng-Bo LiThe entropic uncertainty principle imposes a limit on how precisely two incompatible observables can be measured, which can be reduced when quantum mem...
2025-03-17 10:00:00
Exploring non-Markovianity in ergodic channels: Measuring memory retention through ergotropy
Author(s): Ritam Basu, Anish Chakraborty, Himanshu Badhani, Mir Alimuddin, and Samyadeb BhattacharyaIn this work, we introduce and characterize a broad class of quantum operations with a unique fixed...
2025-03-14 10:00:00
Author(s): Andreas BauerThe path-integral approach to topological quantum error correction provides a unified way to construct and analyze fault-tolerant circuits in spacetime. In this work, we demons...
2025-03-13 10:00:00
Observation of collective Einstein-Podolsky-Rosen steering in three-qubit systems
Author(s): Wen-Qi Fan, Yong-Jian Gu, and Ya XiaoCollective Einstein-Podolsky-Rosen (EPR) steering is a unique multipartite resource that enables the realization of more secure communication protocols....
2025-03-12 10:00:00
Continuous-time quantum optimization without the adiabatic principle
Author(s): Robert J. Banks, Georgios S. Raftis, Dan E. Browne, and P. A. WarburtonContinuous-time quantum algorithms for combinatorial optimization problems, such as quantum annealing, have previously...
2025-03-12 10:00:00
Entanglement entropy dynamics of non-Gaussian states in free boson systems: Random sampling approach
Author(s): Ryui Kaneko, Daichi Kagamihara, and Ippei DanshitaWe develop a random sampling method for calculating the time evolution of the Rényi entanglement entropy after a quantum quench from an ins...
2025-03-11 10:00:00
Author(s): Tim Bode, Krish Ramesh, and Tobias StollenwerkAdvances in quantum algorithms suggest a tentative scaling advantage on certain combinatorial optimization problems. Recent work, however, has...
2025-03-11 10:00:00
Quantum coherence: A fundamental resource for establishing genuine multipartite correlations
Author(s): Zong Wang, Zhihua Guo, Zhihua Chen, Ming Li, Zihang Zhou, Chengjie Zhang, Shao-Ming Fei, and Zhihao MaWe establish the profound equivalence between the coherence measures defined via the co...
2025-03-06 10:00:00
Tensor networks and efficient descriptions of classical data
Author(s): Sirui Lu, Márton Kanász-Nagy, Ivan Kukuljan, and J. Ignacio CiracInspired by methods based on entanglement and mutual information (MI) used to characterize the representation of quantum dat...
2025-03-06 10:00:00
Tradeoff between noise and banding in a quantum adder with qudits
Author(s): Gaurang Agrawal, Tanoy Kanti Konar, Leela Ganesh Chandra Lakkaraju, and Aditi Sen(De)Quantum addition based on the quantum Fourier transform can be an integral part of a quantum circuit and...
2025-03-06 10:00:00
Sub-shot-noise sensitivity via superpositions of two deformed kitten states
Author(s): Naeem Akhtar, Xiaosen Yang, Jia-Xin Peng, Inaam Ul Haq, Yuee Xie, and Yuanping ChenIn the present work we explore nonclassical effects in the phase space of two superposed kitten states ind...
2025-03-05 10:00:00
Entanglement between dependent degrees of freedom: Quasiparticle correlations
Author(s): Franziska Barkhausen, Laura Ares, Stefan Schumacher, and Jan SperlingCommon notions of entanglement are based on well-separated subsystems. However, obtaining such independent degrees of fr...
2025-03-04 10:00:00
Efficient detection of nonclassicality using moments of the Wigner function
Author(s): Bivas Mallick, Sudip Chakrabarty, Saheli Mukherjee, Ananda G. Maity, and A. S. MajumdarStates with a negative Wigner function, a significant subclass of nonclassical states, serve as a valu...
2025-03-04 10:00:00
Quantum hypothesis testing for composite alternative hypotheses
Author(s): Daichi Fujiki, Fuyuhiko Tanaka, and Tatsuya SakashitaMuch of the research in quantum hypothesis testing has focused on simple hypotheses. In practical situations, though, we need to conside...
2025-03-04 10:00:00
Self-supervised representation learning for Bayesian quantum architecture search
Author(s): Zhimin He, Hongxiang Chen, Yan Zhou, Haozhen Situ, Yongyao Li, and Lvzhou LiQuantum architecture search (QAS) has shown significant promise in automating quantum circuit design for variatio...
2025-03-04 10:00:00
Coherent information for Calderbank-Shor-Steane codes under decoherence
Author(s): Ryotaro Niwa and Jong Yeon LeeStabilizer codes lie at the heart of modern quantum-error-correcting codes (QECCs). Of particular importance is a class called Calderbank-Shor-Steane (CSS) cod...
2025-03-03 10:00:00
Author(s): Harikrishnan K J and Amit Kumar PalWe investigate the topological-to-nontopological quantum phase transitions (QPTs) occurring in the Kitaev code under local perturbations in the form of a...
2025-03-03 10:00:00
One-shot manipulation of coherence in dynamic quantum resource theory
Author(s): Yu LuoA fundamental problem in quantum information is to understand the operational significance of quantum resources. Quantum resource theories (QRTs) provide a powerful theoretical framew...
2025-02-28 10:00:00
Quantum advantage in a unified scenario and secure detection of resources
Author(s): Saronath Halder and Alexander StreltsovQuantum resources may provide an advantage over their classical counterparts in communication tasks. We refer to this as quantum advantage. Here, we c...
2025-02-27 10:00:00
Quantum speed limit on the production of quantumness of observables
Author(s): Divyansh Shrimali, Swapnil Bhowmick, and Arun Kumar PatiNonclassical features of quantum systems can degrade when subjected to environment and noise. Here, we ask a fundamental question: Wh...
2025-02-27 10:00:00
Genuine tripartite entanglement in graviton-matter interactions
Author(s): Pablo Guillermo Carmona Rufo, Anupam Mazumdar, and Carlos SabínWe demonstrate the existence of genuine tripartite non-Gaussian entanglement in a quantum gravitational system formed by a qua...
2025-02-26 10:00:00
Quantum information flow in impurity qubits interacting with Bose-Bose mixtures
Author(s): Abdelâali Boudjemâa, Lan Xu, and Qing-Shou TanWe investigate the dynamics of quantum information flow in one and two impurity qubits trapped in a double-well potential and interacting with...
2025-02-25 10:00:00
Progress towards neutron-scattering simulation on an analog quantum processor
Author(s): Nora Bauer, Victor Ale, Pontus Laurell, Serena Huang, Seth Watabe, David Alan Tennant, and George SiopsisNeutron-scattering characterization of materials allows for the study of entanglemen...
2025-02-25 10:00:00
Deviations from geodesic evolutions and energy waste on the Bloch sphere
Author(s): Leonardo Rossetti, Carlo Cafaro, and Paul M. AlsingIn optimal quantum-mechanical evolutions, motion can occur along nonpredetermined paths of shortest length in an optimal time. Alternative...
2025-02-25 10:00:00
Finite-size catalysis in quantum resource theories
Author(s): Patryk Lipka-Bartosik and Kamil KorzekwaQuantum catalysis, the ability to enable previously impossible transformations by using auxiliary systems without degrading them, has emerged as a po...
2025-02-24 10:00:00
Author(s): Yanning Jia, Fenzhuo Guo, Yukun Wang, Haifeng Dong, and Fei GaoWe introduce a hierarchy of tests satisfied by any probability distribution $P$ that represents the quantum correlations gener...
2025-02-24 10:00:00
Attainability of quantum state discrimination bounds with collective measurements on finite copies
Author(s): Lorcán O. Conlon, Jin Ming Koh, Biveen Shajilal, Jasminder Sidhu, Ping Koy Lam, and Syed M. AssadOne of the fundamental tenets of quantum mechanics is that nonorthogonal states cannot be di...
2025-02-21 10:00:00
Author(s): Carola Ciaramelletti, Martin Beseda, Mirko Consiglio, Luca Lepori, Tony J. G. Apollaro, and Simone PaganelliWe study the exact ground states of the Su-Schrieffer-Heeger open chain and of th...
2025-02-21 10:00:00
Optimal local measurements in single-parameter quantum metrology
Author(s): Jia-Xuan Liu, Jing Yang, Hai-Long Shi, and Sixia YuQuantum measurement plays a crucial role in quantum metrology. Due to the limitations of experimental capabilities, collectively measuring...
2025-02-20 10:00:00
Quantum metrology of rotations with mixed spin states
Author(s): Eduardo Serrano-Ensástiga, Chryssomalis Chryssomalakos, and John MartinThe efficiency of a quantum metrology protocol can be significantly diminished by the interaction of the system with i...
2025-02-20 10:00:00
Genuine multipartite entanglement in quantum optimization
Author(s): Gopal Chandra Santra, Sudipto Singha Roy, Daniel J. Egger, and Philipp HaukeThe ability to generate bipartite entanglement in quantum computing technologies is widely regarded as pivotal. H...
2025-02-20 10:00:00
Author(s): C. Poole, T. M. Graham, M. A. Perlin, M. Otten, and M. SaffmanWe propose an implementation of bivariate bicycle codes [S. Bravyi et al., Nature (London) 627, 778 (2024)] based on long-rang...
2025-02-19 10:00:00
Bosonic quantum error correction with neutral atoms in optical dipole traps
Author(s): Leon H. Bohnmann, David F. Locher, Johannes Zeiher, and Markus MüllerBosonic quantum error correction codes encode logical qubits in the Hilbert space of one or multiple harmonic oscillator...
2025-02-19 10:00:00
Adiabatic modulation of driving protocols in periodically driven quantum systems
Author(s): Ashwin Murali, Tapomoy Guha Sarkar, and Jayendra N. BandyopadhyayWe consider a periodically driven system where the high-frequency driving protocol consists of a sequence of potentials swit...
2025-02-18 10:00:00
Effective quantum feature maps in quantum extreme reservoir computation from the $XY$ model
Author(s): Aoi Hayashi, Akitada Sakurai, William J. Munro, and Kae NemotoIt is well known in quantum machine learning that the form of the feature map has a significant effect on the operation and per...
2025-02-18 10:00:00
Practicality of a quantum adiabatic algorithm for chemistry applications
Author(s): Etienne Granet, Khaldoon Ghanem, and Henrik DreyerDespite its simplicity and strong theoretical guarantees, adiabatic state preparation has received considerably less interest than variatio...
2025-02-18 10:00:00
Author(s): Chun Y. Leung and Alessandro RomitoThe interplay between information-scrambling Hamiltonians and local continuous measurements hosts platforms for exotic measurement-induced phase transitio...
2025-02-18 10:00:00
Expressivity of deterministic quantum computation with one qubit
Author(s): Yujin Kim and Daniel K. ParkDeterministic quantum computation with one qubit (DQC1) is of significant theoretical and practical interest due to its computational advantages in certain probl...
2025-02-18 10:00:00
Author(s): Huan-Qiang Zhou, Qian-Qian Shi, John O. Fjærestad, and Ian P. McCullochThe one-dimensional spin-$s\phantom{\rule{4pt}{0ex}}\mathrm{SU}(2)$ ferromagnetic Heisenberg model, as a paradigmatic...
2025-02-14 10:00:00
Avoiding barren plateaus with entanglement
Author(s): Yuhan Yao and Yoshihiko HasegawaIn the search for quantum advantage with near-term quantum devices, navigating the optimization landscape is significantly hampered by the barren plateaus ph...
2025-02-14 10:00:00
Retrieving maximum information of symmetric states from their corrupted copies
Author(s): Zhao-Yi Zhou and Da-Jian ZhangUsing quantum measurements to extract information from states is a matter of routine in quantum science and technologies. A recent work [Phys. Rev. Lett. 133,...
2025-02-14 10:00:00
High-dimensional subspace expansion using classical shadows
Author(s): Gregory Boyd, Bálint Koczor, and Zhenyu CaiWe introduce a postprocessing technique for classical shadow measurement data that enhances the precision of ground state estimation through high-...
2025-02-13 10:00:00
Dynamical resource theory of incompatibility preservability
Author(s): Chung-Yun Hsieh, Benjamin Stratton, Chao-Hsien Wu, and Huan-Yu KuThe uncertainty principle is one of quantum theory's most foundational features. It underpins a quantum phenomenon called me...
2025-02-13 10:00:00
Noise-resilient and resource-efficient hybrid algorithm for robust quantum gap estimation
Author(s): Woo-Ram Lee, Nathan M. Myers, and V. W. ScarolaWe present a hybrid quantum algorithm for estimating gaps in many-body energy spectra, supported by an analytic proof of its inherent resilien...
2025-02-12 10:00:00
Strategies for simulating the time evolution of Hamiltonian lattice field theories
Author(s): Siddharth Hariprakash, Neel S. Modi, Michael Kreshchuk, Christopher F. Kane, and Christian W. BauerSimulating the time evolution of quantum field theories given some Hamiltonian $H$ require...
2025-02-12 10:00:00
Author(s): Isak Lyngfelt and Laura García-ÁlvarezOne of the main limitations of variational quantum algorithms is the classical optimization of the highly dimensional nonconvex variational parameter l...
2025-02-11 10:00:00
Lower bounds for the Trotter error
Author(s): Alexander Hahn, Paul Hartung, Daniel Burgarth, Paolo Facchi, and Kazuya YuasaIn analog and digital simulations of practically relevant quantum systems, the target dynamics can only be imple...
2025-02-11 10:00:00
Imprecision plateaus in quantum steering
Author(s): Elna Svegborn, Nicola d'Alessandro, Otfried Gühne, and Armin TavakoliStandard quantum steering assumes that the experimenter can perfectly control their measurements. The authors show that...
2025-02-11 10:00:00
Parity-controlled gate in a two-dimensional neutral-atom array
Author(s): F. Q. Guo, Shi-Lei Su, Weibin Li, and X. Q. ShaoWe propose a parity-controlled gate within a two-dimensional Rydberg atom array, enabling efficient discrimination between even and odd parit...
2025-02-11 10:00:00
Metrological usefulness of entanglement and nonlinear Hamiltonians
Author(s): Satoya Imai, Augusto Smerzi, and Luca PezzèThe authors establish metrological criteria for entanglement in quantum systems with nonlinear Hamiltonians, deriving separability bounds for quan...
2025-02-10 10:00:00
Class of codes correcting absorptions and emissions
Author(s): Arda Aydin and Alexander BargWe construct a general family of quantum codes that protect against all emission, absorption, dephasing, and raising or lowering errors up to an arbitrary fixed...
2025-02-10 10:00:00
Minimal nonlocality in multipartite quantum systems
Author(s): Guang-Bao Xu, Yong-Qi Zhang, and Dong-Huan JiangQuantum nonlocality, rooted in the quantum state discrimination task, contributes to the development of the theory of local distinguishabilit...
2025-02-10 10:00:00
Bounded light cone and robust topological order out of equilibrium
Author(s): Yu Zeng, Alioscia Hamma, Yu-Ran Zhang, Jun-Peng Cao, Heng Fan, and Wu-Ming LiuThe ground-state degeneracy of topologically ordered gapped Hamiltonians is the bedrock for self-correcting qua...
2025-02-10 10:00:00
Noisy certification of continuous-variable graph states
Author(s): Éloi Descamps and Damian MarkhamContinuous variables (CV) offer a promising platform for the development of various applications, such as quantum communication, computing, and sensing, and...
2025-02-10 10:00:00
Entanglement estimation of Werner states with a quantum extreme learning machine
Author(s): Hajar Assil, Abderrahim El Allati, and Gian Luca GiorgiQuantum extreme learning machines (QELMs) have emerged as a potent tool for various quantum information processing tasks. We present a...
2025-02-10 10:00:00
Benchmarking adiabatic transformation by alternating unitaries
Author(s): Takuya HatomuraAdiabatic transformation can be approximated as alternating unitary operators of a Hamiltonian and its parameter derivative as proposed in a gate-based approach to counterdia...
2025-02-10 10:00:00
Universal time scalings of sensitivity in Markovian quantum metrology
Author(s): Arpan Das, Wojciech Górecki, and Rafał Demkowicz-DobrzańskiThe paper provides a full understanding on the maximal achievable quantum Fisher information (QFI) in quantum sensing protocols, w...
2025-02-10 10:00:00
Shortcuts to adiabatic state transfer in time-modulated two-level non-Hermitian systems
Author(s): Qi-Cheng Wu, Jun-Long Zhao, Yan-Hui Zhou, Biao-Liang Ye, Yu-Liang Fang, Zheng-Wei Zhou, and Chui-Ping YangNontrivial spectral properties of non-Hermitian systems can give rise to intriguing...
2025-02-10 10:00:00
Optimal conversion of Kochen-Specker sets into bipartite perfect quantum strategies
Author(s): Stefan Trandafir and Adán CabelloBipartite perfect quantum strategies (BPQSs) allow two players isolated from each other to win every trial of a nonlocal game. BPQSs have crucial roles in r...
2025-02-07 10:00:00
Multipartite entangling power by von Neumann entropy
Author(s): Xinyu Qiu, Zhiwei Song, and Lin ChenQuantifying the entanglement generation of a multipartite unitary operation is a key problem in quantum information processing. We introduce the definiti...
2025-02-07 10:00:00