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6 papers · 2 filters
Transmission phase lapse in the non-Hermitian Aharonov-Bohm interferometer near the spectral singularity
G. Zhang, X. Q. Li, X. Z. Zhang +1
We study the effect of PT-symmetric imaginary potentials embedded in the two arms of an Aharonov-Bohm interferometer on the transmission phase by finding an exact solution for a co…
More about the doubling degeneracy operators associated with Majorana fermions and Yang-Baxter equation
Li-Wei Yu, Mo-Lin Ge
A new realization of doubling degeneracy based on emergent Majorana operator presented by Lee-Wilczek has been made. The Hamiltonian can be obtained through the new type of sol…
Asymmetric transmission through a flux-controlled non-Hermitian scattering center
X. Q. Li, X. Z. Zhang, G. Zhang +1
We study the possibility of asymmetric transmission induced by a non-Hermitian scattering center embedded in a one-dimensional waveguide, motivated by the aim of realizing quantum…
Dimension-Independent Bounds for Hardy's Experiment
Zhen-Peng Xu, Hong-Yi Su, Jing-Ling Chen
Hardy's paradox is of fundamental importance in quantum information theory. So far, there have been two types of its extensions into higher dimensions: in the first type the maximu…
Quantum Nonlocality Enhanced by Homogenization
Xu Chen, Hong-Yi Su, Zhen-Peng Xu +2
Homogenization proposed in [Y.-C Wu and M. Żukowski, Phys. Rev. A 85, 022119 (2012)] is a procedure to transform a tight Bell inequality with partial correlations into a full-corre…
Conventional quantum phase transition driven by complex parameter in non-Hermitian PT-symmetric Ising model
C. Li, G. Zhang, X. Z. Zhang +1
A conventional quantum phase transition (QPT) can be accessed by varying a real parameter at absolute zero temperature. Motivated by the discovery of the pseudo-Hermiticity of non-…