321 citations · 781 across the 18 of their papers we have counts for
18 papers
Non-Hermitian Chern insulator protected by generalized rotational symmetry
Kai Chen, Alexander B. Khanikaev
We propose a non-Hermitian topological system protected by the generalized rotational symmetry which invokes rotation in space and Hermitian conjugation. The system, described by t…
Kashaev--Reshetikhin Invariants of Links
Kai-Chieh Chen, Calvin McPhail-Snyder, Scott Morrison +1
Kashaev and Reshetikhin previously described a way to define holonomy invariants of knots using quantum at a root of unity. These are generalized quantum invarian…
The Künneth Formula for the Twisted de Rham and Higgs Cohomologies
Kai-Chieh Chen, Jeng-Daw Yu
We prove the Künneth formula for the irregular Hodge filtrations on the exponentially twisted de Rham and the Higgs cohomologies of smooth quasi-projective complex varieties. The m…
Experimental Determination of Entanglement for Arbitrary Pure States
Shao-Ming Fei, Ming-Jing Zhao, Kai Chen +1
We present a way of experimentally determining the concurrence in terms of the expectation values of local observables for arbitrary multipartite pure states. In stead of the joint…
Concurrence-based entanglement measure for Werner States
Kai Chen, Sergio Albeverio, Shao-Ming Fei
We give explicit expressions for entanglement measures of Werner states in arbitrary dimensions in terms of concurrence and tangle. We show that an optimal ensemble decomposition f…
Two-Setting Bell Inequalities for Many Qubits
Kai Chen, Sergio Albeverio, Shao-Ming Fei
We present a family of Bell inequalities involving only two measurement settings of each party for N>2 qubits. Our inequalities include all the standard ones with fewer than N qubi…