516 citations · 991 across the 10 of their papers we have counts for
10 papers
Observing Parity Time Symmetry Breaking in a Josephson Parametric Amplifier
Chandrashekhar Gaikwad, Daria Kowsari, Weijian Chen +1
A coupled two-mode system with balanced gain and loss is a paradigmatic example of an open quantum system that can exhibit real spectra despite being described by a non-Hermitian H…
Speeding up entanglement generation by proximity to higher-order exceptional points
Zeng-Zhao Li, Weijian Chen, Maryam Abbasi +2
Entanglement is a key resource for quantum information technologies ranging from quantum sensing to quantum computing. Conventionally, the entanglement between two coupled qubits i…
Demonstration of fully integrated parity-time-symmetric electronics
Weidong Cao, Changqing Wang, Weijian Chen +4
Harnessing parity-time (PT) symmetry with balanced gain and loss profiles has created a variety of opportunities in electronics from wireless energy transfer to telemetry sensing a…
Decoherence Induced Exceptional Points in a Dissipative Superconducting Qubit
Weijian Chen, Maryam Abbasi, Byung Ha +3
Open quantum systems interacting with an environment exhibit dynamics described by the combination of dissipation and coherent Hamiltonian evolution. Taken together, these effects…
Topological quantum state control through exceptional-point proximity
Maryam Abbasi, Weijian Chen, Mahdi Naghiloo +2
We study the quantum evolution of a non-Hermitian qubit realized as a submanifold of a dissipative superconducting transmon circuit. Real-time tuning of the system parameters to en…
Quantum jumps in the non-Hermitian dynamics of a superconducting qubit
Weijian Chen, Maryam Abbasi, Yogesh N. Joglekar +1
We study the dynamics of a driven non-Hermitian superconducting qubit which is perturbed by quantum jumps between energy levels, a purely quantum effect with no classical correspon…