439 citations · 1.8k across the 39 of their papers we have counts for
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quant-ph2021★ 21 cited
Exponential clustering of bipartite quantum entanglement at arbitrary temperatures
Tomotaka Kuwahara, Keiji Saito
Macroscopic quantum effects play central roles in the appearance of inexplicable phenomena in low-temperature quantum many-body physics. Such macroscopic quantumness is often evalu…
quant-ph2021★ 149 cited
Fate of measurement-induced phase transition in long-range interactions
Takaaki Minato, Koudai Sugimoto, Tomotaka Kuwahara +1
We consider quantum many-body dynamics under quantum measurements, where the measurement-induced phase transitions (MIPs) occur when changing the frequency of the measurement. In t…
quant-ph2021★ 41 cited
Lieb-Robinson bound and almost-linear light-cone in interacting boson systems
Tomotaka Kuwahara, Keiji Saito
In this work, we investigate how quickly local perturbations propagate in interacting boson systems with Bose-Hubbard-type Hamiltonians. In general, these systems have unbounded lo…