Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Peking UniversityCN1.8k papers
- Institute of High Energy PhysicsCN1.4k papers
- Tsinghua UniversityCN1.4k papers
- Carnegie Mellon UniversityUS1.3k papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT1.3k papers
- Indian Institute of Technology MadrasIN1.2k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di PerugiaIT1.2k papers
- Joint Institute for Nuclear ResearchRU1.1k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di TorinoIT1.1k papers
- National Centre for Nuclear ResearchPL1k papers
- Seoul National UniversityKR999 papers
- Charles UniversityCZ978 papers
144 papers · 1 filter
Calibrating the Role of Entanglement in Variational Quantum Algorithms from a Geometric Perspective
Chunxiao Du, Yang Zhou, Zhichen Huang +4
Calibrating the role of entanglement in quantum algorithms is a crucial task in the development of quantum computing. Most existing studies have primarily focused on how the static…
Semi-device-independent certification of high-dimensional quantum channels
Mengyan Li, Yanning Jia, Fenzhuo Guo +3
Certifying high-dimensional quantum channels is essential for ensuring the reliability of quantum communication protocols. Existing certification schemes often rely on fully truste…
Non-commutative Index of Measurement-only Entanglement Phase Transition
Zhichen Huang, Chunxiao Du, Yang Zhou +1
Measurement-only models offer an ideal platform for exploring entanglement dynamics in the absence of unitary evolution. Despite extensive numerical evidence for entanglement phase…
Nonreciprocity of intense light field and weak quantum signal in optomechanical systems with three-mode parametric interactions
Yao Dong, Xin-Yao Huang, Guo-Feng Zhang
We demonstrate nonreciprocal optical transmission for both intense classical fields and weak quantum signals within a reconfigurable optomechanical platform driven by three-mode pa…
Mixed States Uniquely Determined by Marginals and Additivity
Xinyu Qiu, Lin Chen, Genwei Li +1
Identifying whether a mixed quantum state is uniquely determined among all states (UDA) by its local marginals is a basic problem in quantum information theory. We establish necess…
Dynamical decoupling protection for three-level systems
P. Z. Zhao, Lei Qiao
In addition to the traditional two-level system, the three-level system serves as another important elemental building block for the manipulation of qubits. However, the quantum in…
Spectral characterizations of entanglement witnesses
Zhiwei Song, Lin Chen
We present a systematic investigation of the spectral properties of entanglement witnesses (EWs). Specifically, we analyze the infimum and supremum of the largest eigenvalue, the s…
Statistics-encoded tensor network approach in disordered quantum many-body spin chains
Hao Zhu, Ding-Zu Wang, Shi-Ju Ran +1
Simulating the dynamics of quantum many-body systems with disorder is a fundamental challenge. In this work, we propose a general approach -- the statistics-encoded tensor network…
Stabilizer Rényi Entropy for Translation-Invariant Matrix Product States
Lei-Yi-Nan Liu, Su Yi, Jian Cui
Magic, capturing the deviation of a quantum state from the stabilizer formalism, is a key resource underpinning the quantum advantage. The recently introduced stabilizer Rényi entr…
Detecting (emergent) continuous symmetry of criticality via subsystem's entanglement spectrum
Bin-Bin Mao, Zhe Wang, Bin-Bin Chen +1
The (emergent) symmetry of a critical point is one of the most important information to identify the universality class and effective field theory, which is fundamental for various…
Inflationary power spectrum from the Lanczos algorithm
Ke-Hong Zhai, Lei-Hua Liu, Hai-Qing Zhang
The generalized Lanczos algorithm can provide a universal method for constructing the wave function under the group structure of Hamiltonian. Based on this fact, we obtain an open…
Reply to Comment on 'Product states and Schmidt rank of mutually unbiased bases in dimension six'
Mengfan Liang, Lin Chen
Daniel McNulty et.al (2024 J. Phys. A: Math. Theor. submitted) voiced suspicions to the Lemma 11(v) Part 6 in Chen and Yu (2017 J. Phys. A: Math. Theor. 50 475304) and three theore…
Measuring network quantum steerability utilizing artificial neural networks
Mengyan Li, Yanning Jia, Fenzhuo Guo +3
Network quantum steering plays a pivotal role in quantum information science, enabling robust certification of quantum correlations in scenarios with asymmetric trust assumptions a…
Tight upper bound of the maximal quantum violation of Gisin's elegant Bell inequality and its application in randomness certification
Dan-Dan Hu, Meng-Yan Li, Fen-Zhuo Guo +3
The violation of a Bell inequality implies the existence of nonlocality, making device-independent randomness certification possible. This paper derives a tight upper bound for the…
Multipartite entangling power by von Neumann entropy
Xinyu Qiu, Zhiwei Song, Lin Chen
Quantifying the entanglement generation of a multipartite unitary operation is a key problem in quantum information processing. We introduce the definition of multipartite entangli…
On the extreme points of sets of absolulely separable and PPT states
Zhiwei Song, Lin Chen
The absolutely separable (resp. PPT) states remain separable (resp. positive partial transpose) under any global unitary operation. We present a compact form of the extreme points…
Atom graph, partial Boolean algebra and quantum contextuality
Songyi Liu, Yongjun Wang, Baoshan Wang +2
Partial Boolean algebra underlies the quantum logic as an important tool for quantum contextuality. We propose the notion atom graphs to reveal the graph structure of partial Boole…
High-dimentional Multipartite Entanglement Structure Detection with Low Cost
Rui Li, Shikun Zhang, Zheng Qin +3
Quantum entanglement detection and characterization are crucial for various quantum information processes. Most existing methods for entanglement detection rely heavily on a comple…
The detection power of real entanglement witnesses under local unitary equivalence
Yi Shen, Lin Chen, Zhihao Bian
The imaginary unit has recently been experimentally proven to be indispensable for quantum mechanics. We study the differences in detection power between real and complex entan…
Multitype entanglement dynamics induced by exceptional points
Zigeng Li, Xinyao Huang, Hongyan Zhu +3
As a most important feature of non-Hermitian systems, exceptional points (EPs) lead to a variety of unconventional phenomena and applications. Here, we study a generic model compos…
Machine-Learning Insights into the Entanglement-trainability Correlation of Parameterized Quantum Circuits
Shikun Zhang, Yang Zhou, Zheng Qin +4
Variational quantum algorithms (VQAs) have emerged as the leading strategy to obtain quantum advantage on the current noisy intermediate-scale devices. However, their entanglement-…
Characterizing dynamical criticality of many-body localization transitions from the Fock-space perspective
Zheng-Hang Sun, Yong-Yi Wang, Jian Cui +2
Characterizing the nature of many-body localization transitions (MBLTs) and their potential critical behaviors has remained a challenging problem. In this work, we study the dynami…
A characterization of entangled two-qubit states via partial-transpose-moments
Lin Zhang, Ming-Jing Zhao, Lin Chen +2
Although quantum entanglement is an important resource, its characterization is quite challenging. The partial transposition is a common method to detect bipartite entanglement. In…
Spontaneous superradiant photon current
Lei Qiao, Jiangbin Gong
This work reports the spontaneous emergence of a photon current in a class of spin-cavity systems, where an assemble of quantum emitters interact with distinct photon modes confine…