Stochastic noise can be helpful for variational quantum algorithms
Author(s): Junyu Liu, Frederik Wilde, Antonio Anna Mele, Xin Jin, Liang Jiang, and Jens EisertSaddle points constitute a crucial challenge for first-order gradient descent algorithms. In notions of cl...
2025-05-22 10:00:00
Relation between quantum illumination and quantum parameter estimation
Author(s): Wei Zhong, Dong-Qing Wang, Wen-Yi Zhu, Lan Zhou, Ming-Ming Du, and Yu-Bo ShengQuantum illumination (QI) leverages entangled lights to detect the presence of low-reflectivity objects within...
2025-05-22 10:00:00
Observation of a full hierarchy of temporal quantum correlations with a superconducting qubit
Author(s): Hao-Cheng Weng, Chen-Yeh Wei, Huan-Yu Ku, Shin-Liang Chen, Yueh-Nan Chen, and Chih-Sung ChuuTemporal quantum correlations provide an intriguing way of testing quantumness at the macroscopic...
2025-05-22 10:00:00
Geometry from quantum temporal correlations
Author(s): James Fullwood and Vlatko VedralIn this Letter, we show how Euclidean three-space uniquely emerges from the structure of quantum temporal correlations associated with sequential measurement...
2025-05-20 10:00:00
Author(s): Yu-qiang Liu, Shan Sun, Yi-jia Yang, Zheng Liu, Xingdong Zhao, Zunlue Zhu, Wuming Liu, and Chang-shui YuThis work presents a scheme for engineering quantum entanglement and Einstein-Podolsk...
2025-05-19 10:00:00
Author(s): Ilia V. Zalivako, Alexander I. Gircha, Evgeniy O. Kiktenko, Anastasiia S. Nikolaeva, Denis A. Drozhzhin, Alexander S. Borisenko, Andrei E. Korolkov, Nikita V. Semenin, Kristina P. Galstyan,...
2025-05-19 10:00:00
Quantum simulations of macrorealism violation via the quantum nondemolition measurement protocol
Author(s): D. Melegari, M. Cardi, and P. SolinasThe Leggett-Garg inequalities have been proposed to identify the quantum behavior of a system; specifically, the violation of macrorealism. They are usu...
2025-05-19 10:00:00
Locally stable sets without entanglement with minimum cardinality
Author(s): Xiao-Fan Zhen, Su-Juan Qin, Zheng-Ping Jin, Hui-Juan Zuo, and Fei GaoOver the past two decades, much progress has been made in the construction of nonlocal sets without entanglement. Recent...
2025-05-19 10:00:00
Direct and efficient detection of quantum superposition
Author(s): Daniel Kun, Teodor Strömberg, Michele Spagnolo, Borivoje Dakić, Lee A. Rozema, and Philip WaltherThe authors introduce a protocol that leverages an XOR game to directly verify quantum super...
2025-05-16 10:00:00
Unification of finite symmetries in the simulation of many-body systems on quantum computers
Author(s): Victor M. Bastidas, Nathan Fitzpatrick, K. J. Joven, Zane M. Rossi, Shariful Islam, Troy Van Voorhis, Isaac L. Chuang, and Yuan LiuSymmetry is fundamental in the description and simulation...
2025-05-16 10:00:00
Simple Hamiltonian dynamics as a powerful resource for image classification
Author(s): Akitada Sakurai, Aoi Hayashi, W. J. Munro, and Kae NemotoA quadrillion-dimensional Hilbert space hosted by a quantum processor with over 50 physical qubits has been expected to be powerful...
2025-05-16 10:00:00
Author(s): Fan Meng, Hao Zhu, Xin-Yao Huang, and Guo-Feng ZhangQuantum entanglement constitutes a pivotal resource, serving as a fundamental cornerstone within the field of quantum information science...
2025-05-16 10:00:00
Isoholonomic inequality and tight implementations of holonomic quantum gates
Author(s): Ole SönnerbornIn holonomic quantum computation, quantum logic gates are realized by cyclic parallel transport of the computational space. The resulting quantum gate corresponds to the holon...
2025-05-16 10:00:00
Parallel transport in rotating frames and projective holonomic quantum computation
Author(s): Ole SönnerbornNonadiabatic holonomic quantum computation is a promising approach for implementing quantum gates that offers both efficiency and robustness against certain types of errors. A...
2025-05-16 10:00:00
Measuring entanglement along collective operators
Author(s): Éloi Descamps, Arne Keller, and Pérola MilmanWe introduce a framework for studying multiparty entanglement by analyzing the behavior of collective variables. Throughout the paper, we explor...
2025-05-15 10:00:00
Sequential information-theoretic protocols in continuous-variable systems
Author(s): Sudipta Das, Ayan Patra, Rivu Gupta, Aditi Sen(De), and Himadri Shekhar DharIn order to enable the sequential implementation of quantum information-theoretic protocols in the continuous var...
2025-05-15 10:00:00
Carving entangled multiparticle states with exponentially improved fidelity
Author(s): Joshua Ramette, Josiah Sinclair, Zeyang Li, and Vladan VuletićWe propose a method that uses the “no-jump” evolution of a probe to generate entangled multiparticle states of high fidelity. T...
2025-05-14 10:00:00
Characterizing non-Markovian quantum processes by fast Bayesian tomography
Author(s): R. Y. Su, J. Y. Huang, N. Dumoulin Stuyck, M. K. Feng, W. Gilbert, T. J. Evans, W. H. Lim, F. E. Hudson, K. W. Chan, W. Huang, Kohei M. Itoh, R. Harper, S. D. Bartlett, C. H. Yang, A. Lauch...
2025-05-14 10:00:00
Inevitable negativity: Additivity commands negative quantum channel entropy
Author(s): Gilad Gour, Doyeong Kim, Takla Nateeboon, Guy Shemesh, and Goni YoeliQuantum channels represent a broad spectrum of operations crucial to quantum information theory, encompassing everything...
2025-05-14 10:00:00
Informational nonequilibrium concentration
Author(s): Chung-Yun Hsieh, Benjamin Stratton, Hao-Cheng Weng, and Valerio ScaraniInformational contributions to thermodynamics can be studied in isolation by considering systems with fully degenerate...
2025-05-13 10:00:00
Quantifying magic resource for quantum channels via channel-state duality
Author(s): Xiaohui Li, Shunlong Luo, and Zijian ZhangAccording to the celebrated Gottesman-Knill theorem, magic resource (nonstabilizerness) is necessary to drive universal quantum computation. Thus c...
2025-05-13 10:00:00
High-fidelity initialization of a logical qubit with multiple injections
Author(s): Zhi-Cheng He and Zheng-Yuan XueQuantum error correction represents a significant advancement in large-scale quantum computing. However, achieving fault-tolerant implementations of non-Cliff...
2025-05-12 10:00:00
Unexpected consequences of postquantum theories in the graph-theoretical approach to correlations
Author(s): José Nogueira, Carlos Vieira, and Marcelo Terra CunhaThis work explores the implications of the exclusivity principle (EP) in the context of quantum and postquantum correlations. We first e...
2025-05-09 10:00:00
Author(s): C. L. Liu, Baoqing Sun, and D. L. ZhouThe conditions for transforming pure entangled states under local operations and classical communication (LOCC) are well understood. A natural question...
2025-05-09 10:00:00
Quantum walk on a square lattice with identical particles
Author(s): Gonzalo Camacho, Jasmin Meinecke, and Janik WoltersWe investigate quantum superposition effects in two-dimensional quantum walks of identical particles with different statistics under parti...
2025-05-09 10:00:00
Author(s): Shi Hu, Shihao Li, Meiqing Hu, and Zhoutao LeiWe systematically investigate Landau-Zener-Stückelberg-Majorana (LZSM) interference under chiral-mirror-like symmetry and propose its applicati...
2025-05-08 10:00:00
Dynamical multipartite entanglement in a generalized Tavis-Cummings model with $XY$ spin interaction
Author(s): Yuguo Su, Zhijie Sun, Yiying Yan, Hengyan Wang, Junyan Luo, Tiantian Ying, Hongbin Liang, and Yi-Xiao HuangWe present the dynamical multipartite entanglement, which is in terms of the quant...
2025-05-08 10:00:00
Author(s): Mei-Rong Wei, Qi Guo, Gang Li, and Tiancai ZhangWe propose how to generate the entanglement of two long-lived phonon modes in a circuit quantum acoustodynamics system, which consists of a m...
2025-05-08 10:00:00
Noise-adapted quantum error correction for non-Markovian noise
Author(s): Debjyoti Biswas, Shrikant Utagi, and Prabha MandayamWe consider the problem of quantum error correction (QEC) for non-Markovian noise. Using the well-known Petz recovery map, we first show...
2025-05-08 10:00:00
Dynamics of correlations and entanglement generation in electron-molecule inelastic scattering
Author(s): Martin Mendez and Federico M. PontThe dynamics and processes involved in particle-molecule scattering, including nuclear dynamics, are described and analyzed using various quantum informati...
2025-05-07 10:00:00
Author(s): Wanchen Zhang, Yu Ning, Fei Shi, and Xiande ZhangA pure multipartite quantum state is called absolutely maximally entangled if all reductions of no more than half of the parties are maximal...
2025-05-07 10:00:00
Characterization of randomness in quantum circuits of continuous gate sets
Author(s): Yosuke Mitsuhashi, Ryotaro Suzuki, Tomohiro Soejima, and Nobuyuki YoshiokaIn the accompanying paper [Y. Mitsuhashi, et al., Phys. Rev. Lett. 134, 180404 (2025)], we established the method...
2025-05-07 10:00:00
Port-based telecloning of an unknown quantum state
Author(s): Reiji Okada, Kohtaro Kato, and Francesco BuscemiTelecloning is a protocol introduced by Murao et al. [Phys. Rev. A 59, 156 (1999)] to distribute copies of an unknown quantum state to many r...
2025-05-06 10:00:00
Erasing imaginarity: An operational method
Author(s): Xian ShiThe author addresses an approach to quantify the imaginarity of a quantum state by the amount of noise required to destroy it, and shows that this quantity is equal to the regulariz...
2025-05-05 10:00:00
Broadband spectroscopy of quantum noise
Author(s): Yuanlong Wang and Gerardo A. Paz-SilvaCharacterizing noise is key to the optimal control of the quantum system it affects. Using a single-qubit probe and appropriate sequences of $π$ and no...
2025-05-05 10:00:00
Hypothesis testing of symmetry in quantum dynamics
Author(s): Yu-Ao Chen, Chenghong Zhu, Keming He, Yingjian Liu, and Xin WangSymmetry plays a crucial role in quantum physics, dictating the behavior and dynamics of physical systems. In this paper, we...
2025-05-05 10:00:00
Improving parameter estimation in Gaussian channels using quantum coherence
Author(s): Jonas F. G. Santos, Carlos H. S. Vieira, and Wilder R. CardosoGaussian quantum channels are relevant operations in continuous variable systems. In general, given an arbitrary state, the act...
2025-05-02 10:00:00
Author(s): Shikun Zhang, Yang Zhou, Zheng Qin, Rui Li, Chunxiao Du, Zhisong Xiao, and Yongyou ZhangVariational quantum algorithms (VQAs) have emerged as the leading strategy to obtain quantum advantag...
2025-05-02 10:00:00
Slow decay rate of correlations induced by long-range extended Dzyaloshinskii-Moriya interactions
Author(s): Tanoy Kanti Konar, Leela Ganesh Chandra Lakkaraju, and Aditi Sen(De)We examine the impact of long-range Dzyaloshinskii-Moriya (DM) interaction in the extended $XY$ model on the phase diagra...
2025-05-02 10:00:00
Clifford-dressed variational principles for precise Loschmidt echoes
Author(s): Antonio Francesco Mello, Alessandro Santini, and Mario ColluraWe extend the recently introduced Clifford-dressed time-dependent variational principle (TDVP) to efficiently compute many-body...
2025-05-02 10:00:00
Quantum data-hiding scheme using orthogonal separable states
Author(s): Donghoon Ha and Jeong San KimWe consider bipartite quantum state discrimination and present a quantum data-hiding scheme utilizing an orthogonal separable state ensemble. Using a bound on l...
2025-05-02 10:00:00
Binarization of multioutcome measurements in high-dimensional quantum correlation experiments
Author(s): Armin Tavakoli, Roope Uola, and Jef PauwelsHigh-dimensional systems are an important frontier for photonic quantum correlation experiments. These correlation tests commonly prescribe measur...
2025-04-30 10:00:00
Biasing quantum trajectories for enhanced sensing
Author(s): Theodoros IliasQuantum continuous measurement strategies are an essential element in many modern sensing technologies, leading to potentially enhanced estimation of unknown physical paramet...
2025-04-29 10:00:00
Author(s): Koichi MiyamotoQuantum Monte Carlo integration (QMCI) is a quantum algorithm to estimate expectations of random variables, with applications in various industrial fields such as financial d...
2025-04-25 10:00:00
Quantum dissipative search via Lindbladians
Author(s): Peter J. Eder, Jernej Rudi Finžgar, Sarah Braun, and Christian B. MendlClosed quantum systems follow a unitary time evolution that can be simulated on quantum computers. By incorporating no...
2025-04-25 10:00:00
Author(s): Yaqi Zhao, Jinchuan Hou, Kan He, Nicolò Lo Piparo, and Xiangyi MengQuantum networks (QNs) promise to enhance the performance of various quantum technologies in the near future by distributi...
2025-04-24 10:00:00
Suppressing gauge drift in quantum simulations with gauge transformations
Author(s): Carter BallThe simulation of quantum lattice gauge theories faces the major challenge of maintaining gauge invariance because various errors in the simulation push the state of the system o...
2025-04-23 10:00:00
Quantifying quantum-state texture
Author(s): Yiding Wang, Hui Liu, and Tinggui ZhangQuantum-state texture is a newly recognized quantum resource that has garnered attention with the advancement of quantum theory. In this work, we intr...
2025-04-23 10:00:00
Experimental quantification of quantum coherence for a set of quantum states
Author(s): Tianle Zheng, Liangsheng Li, Wenting Zhou, and Chengjie ZhangWe present direct experimental verification of quantum coherence for a set of quantum states in a basis-independent manner. We f...
2025-04-22 10:00:00
Author(s): Jialin Li, Yazhi Niu, Lupei Qin, and Xin-Qi LiWe propose a postselected amplification scheme for phase-shift measurement of optical coherent states when passing through the Mach-Zehnder int...
2025-04-21 10:00:00
Quantum routing based on chiral state transfer in arbitrary $N$-node networks
Author(s): Wei Feng, Zuyan Wei, Guo-Qiang Zhang, Jun-Yao Li, Jun-Xiang Zhang, and Chui-Ping YangThe ability to route quantum states between arbitrary nodes in a multinode network is one of the many fa...
2025-04-18 10:00:00
Topological blocking decoder for surface codes
Author(s): Hyunwoo Jung and Jeongseok HaSurface codes have gained widespread popularity as quantum error-correction codes due to their unique structural feature that encoders and decoders can be imple...
2025-04-18 10:00:00
Global restrictions under local state discrimination
Author(s): Carles Roch i Carceller and Alexander BernalWe investigate how local distinguishability can restrict global properties of states shared between two parties. We begin exploring how nonlocali...
2025-04-18 10:00:00
Macroscopic quantum teleportation with ensembles of qubits
Author(s): Manish Chaudhary, Zhiyuan Lin, Shuang Li, Mohan Zhang, Yuping Mao, Valentin Ivannikov, and Tim ByrnesWe develop methods for performing quantum teleportation of the total spin variables of a...
2025-04-16 10:00:00
Single-shot quantum machine learning
Author(s): Erik Recio-Armengol, Jens Eisert, and Johannes Jakob MeyerQuantum machine learning aims to improve learning methods through the use of quantum computers. If it is to ever realize its potent...
2025-04-15 10:00:00
Quantum permutation puzzles with indistinguishable particles
Author(s): Noah Lordi, Maedée Trank-Greene, Akira Kyle, and Joshua CombesPermutation puzzles, such as the Rubik's Cube and the 15 puzzle, are enjoyed by the general public and mathematicians alike. He...
2025-04-14 10:00:00
Author(s): Jonathan Louvet, Eduardo Serrano-Ensástiga, Thierry Bastin, and John MartinThe equivalence between absolutely separable states and absolutely positive partial transposed (PPT) states in gen...
2025-04-11 10:00:00
Geometry of sets of Bargmann invariants
Author(s): Lin Zhang, Bing Xie, and Bo LiCertain unitary invariants, known as Bargmann invariants or multivariate traces of quantum states, have recently gained attention due to their applications in...
2025-04-11 10:00:00
Quantum variational autoencoder utilizing regularized mixed-state latent representations
Author(s): Gaoyuan Wang, Jonathan Warrell, Prashant S. Emani, and Mark GersteinA major challenge in near-term quantum computing is its application to large real-world datasets due to scarce quantum ha...
2025-04-11 10:00:00
Waiting time statistics for a double quantum dot coupled to an optical cavity
Author(s): Luis F. Santos and Gabriel T. LandiA double quantum dot coupled to an optical cavity is a prototypical example of a nontrivial open quantum system. Recent experimental and theoretical studi...
2025-04-09 10:00:00
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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