3 papers
quant-ph2025
Robust qubit interactions mediated by photonic topological edge states
Boris Gurevich, Weihua Xie, Mohsen Yarmohammadi +1
We investigate the coupling of two spatially separated qubits via topologically protected edge states in a two-dimensional Hofstadter lattice. In this hybrid platform, the qubits a…
cond-mat.str-el2024
Effects of non-integrability in a non-Hermitian time crystal
Weihua Xie, Michael Kolodrubetz, Vadim Oganesyan +1
Time crystals are systems that spontaneously break time-translation symmetry, exhibiting repeating patterns in time. Recent work has shown that non-Hermitian Floquet systems can ho…
cond-mat.str-el2024
Effect of noise on quantum circuit realization of non-Hermitian time crystals
Weihua Xie, Michael Kolodrubetz, Vadim Oganesyan
Non-Hermitian quantum dynamics lie in an intermediate regime between unitary Hamiltonian dynamics and trace-preserving non-unitary open quantum system dynamics. Given differences i…