3 papers
quant-ph2026
Dynamical zero modes, boundary dependence, and numerical instability in dynamical quantum phase transitions
Siyan Lin, Xu Feng, Xiuhua Tian +1
Boundary conditions are usually expected to cause only finite-size corrections to bulk quantities, but this expectation can fail for dynamical quantum phase transitions. In this wo…
quant-ph2025
Tunable discrete quasi-time crystal from a single drive
Xu Feng, Shuo Liu, Shu Chen +1
The search for exotic temporal orders in quantum matter, such as discrete quasi-time crystals (DQTCs), has become an important theme in nonequilibrium physics. However, realizing t…
quant-ph2024
Delocalization of skin steady states
Xu Feng, Shu Chen
The skin effect, characterized by the tendency of particles to accumulate at the boundaries, has been extensively studied in non-Hermitian systems. In this work, we propose an intu…