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Entanglement Dynamics with a Stochastic Non-Hermitian Hamiltonian away from Exceptional Points
Hamid Sakhouf, Peng Xue
Although non-Hermitian dynamics near exceptional points (EPs) provide a route to accelerated entanglement generation, entanglement can also be generated far from EPs at comparable…
Synchronous observation of Bell nonlocality and state-dependent Kochen-Specker contextuality
Lei Xiao, Gabriel Ruffolo, André Mazzari +4
Bell nonlocality and Kochen-Specker contextuality are two remarkable nonclassical features of quantum theory, related to strong correlations between outcomes of measurements perfor…
Quantum deleting and cloning in a pseudo-unitary system
Yucheng Chen, Ming Gong, Peng Xue +2
In conventional quantum mechanics, quantum no-deleting and no-cloning theorems indicate that two different and nonorthogonal states cannot be perfectly and deterministically delete…
Quantum information dynamics in a high-dimensional parity-time-symmetric system
Zhihao Bian, Lei Xiao, Kunkun Wang +5
Non-Hermitian systems with parity-time () symmetry give rise to exceptional points (EPs) with exceptional properties that arise due to the coalescence of eigenvectors…
Simulating Exceptional Non-Hermitian Metals with Single-Photon Interferometry
Kunkun Wang, Lei Xiao, Jan Carl Budich +2
We experimentally simulate in a photonic setting non-Hermitian (NH) metals characterized by the topological properties of their nodal band structures. Implementing nonunitary time…
Observation of non-Bloch parity-time symmetry and exceptional points
Lei Xiao, Tianshu Deng, Kunkun Wang +3
Parity-time (PT)-symmetric Hamiltonians have widespread significance in non-Hermitian physics. A PT-symmetric Hamiltonian can exhibit distinct phases with either real or complex ei…