121 citations · 161 across the 8 of their papers we have counts for
8 papers
Symmetrized Block-Product Periodic Marginals in Infinite Translation-Invariant Quantum Chains
Xiao Zeng, Kaiyan Yang, Lingxia Zhang +1
We study local marginals in one-dimensional translation-invariant quantum systems that may hide finite-period structure. Given an -site reduced density matrix, we ask whether it…
Contextuality as a Diagnostic of Translation-Symmetry Breaking in Translation-Invariant 1D Hamiltonians
Xiao Zeng, Kaiyan Yang, Lingxia Zhang +1
Bell- and contextuality-type inequalities have become practical probes of many-body quantum correlations, often involving only few-body correlators and quantities with a direct Ham…
Local-Observable-Guided Generative Quantum Circuits for Degenerate Ground Spaces
Yiying Chen, Lingxia Zhang, Yanzheng Zhu +3
Searching for degenerate ground spaces in quantum many-body systems is central to understanding spontaneous symmetry breaking and topological order. Although existing numerical met…
Contextuality in infinite one-dimensional translation-invariant local Hamiltonians: strengths and limits
Kaiyan Yang, Xiao Zeng, Yujing Luo +4
In recent years there has been a growing interest in treating many-body systems as Bell scenarios, where lattice sites play the role of distant parties and only near-neighbor stati…
Testing real quantum theory in an optical quantum network
Zheng-Da Li, Ya-Li Mao, Mirjam Weilenmann +12
Quantum theory is commonly formulated in complex Hilbert spaces. However, the question of whether complex numbers need to be given a fundamental role in the theory has been debated…
Photonic realization of quantum resetting
Zheng-Da Li, Xu-Fei Yin, Zizhu Wang +11
Contrary to the usual assumption of at least partial control of quantum dynamics, a surprising recent result proved that an arbitrary quantum state can be probabilistically reset t…
Two Dimensional Translation-Invariant Probability Distributions: Approximations, Characterizations and No-Go Theorems
Zizhu Wang, Miguel Navascués
We study the properties of the set of marginal distributions of infinite translation-invariant systems in the 2D square lattice. In cases where the local variables can only take a…
Entanglement and Nonlocality in Infinite 1D Systems
Zizhu Wang, Sukhwinder Singh, Miguel Navascués
We consider the problem of detecting entanglement and nonlocality in one-dimensional (1D) infinite, translation-invariant (TI) systems when just near-neighbor information is availa…