254 citations · 488 across the 23 of their papers we have counts for
4 papers · 1 filter
Exceptional Dynamical Quantum Phase Transitions in Periodically Driven Systems
Ryusuke Hamazaki
Extending notions of phase transitions to nonequilibrium realm is a fundamental problem for statistical mechanics. While it was discovered that critical transitions occur even for…
PT-symmetric non-Hermitian quantum many-body system using ultracold atoms in an optical lattice with controlled dissipation
Yosuke Takasu, Tomoya Yagami, Yuto Ashida +3
We report our realization of a parity-time (PT) symmetric non-Hermitian many-body system using cold atoms with dissipation. After developing a theoretical framework on PT-symmetric…
Error bounds for constrained dynamics in gapped quantum systems: Rigorous results and generalizations
Zongping Gong, Nobuyuki Yoshioka, Naoyuki Shibata +1
In arXiv:2001.03419 we introduce a universal error bound for constrained unitary dynamics within a well-gapped energy band of an isolated quantum system. Here, we provide the full…
Universal Error Bound for Constrained Quantum Dynamics
Zongping Gong, Nobuyuki Yoshioka, Naoyuki Shibata +1
It is well known in quantum mechanics that a large energy gap between a Hilbert subspace of specific interest and the remainder of the spectrum can suppress transitions from the qu…