205 citations · 3.3k across the 120 of their papers we have counts for
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quant-ph2020★ 4 cited
Quantum weak invariants: Dynamical evolution of fluctuations and correlations
Zeyi Shi, Sumiyoshi Abe
Weak invariants are time-dependent observables with conserved expectation values. Their fluctuations, however, do not remain constant in time. On the assumption that time evolution…
quant-ph2020
Fast-forward scheme reexamined: Choice of time and quantization
Sumiyoshi Abe
The fast-forward scheme for accelerating time evolution of quantum states through change of time is reexamined. Dirac's homogeneous formalism for classical dynamics and canonical q…