97 citations · 439 across the 20 of their papers we have counts for
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Tensor-network approach to thermalization in open quantum many-body systems
Hayate Nakano, Tatsuhiko Shirai, Takashi Mori
We investigate the relaxation dynamics of open non-integrable quantum many-body systems in the thermodynamic limit by using a tensor-network formalism. We simulate the Lindblad qua…
Guiding Principle for Minor-Embedding in Simulated-Annealing-Based Ising Machines
Tatsuhiko Shirai, Shu Tanaka, Nozomu Togawa
We propose a novel type of minor-embedding (ME) in simulated-annealing-based Ising machines. The Ising machines can solve combinatorial optimization problems. Many combinatorial op…
Exact bounds for dynamical critical exponents of transverse-field Ising chains with a correlated disorder
Tatsuhiko Shirai, Shu Tanaka
This study investigates the dynamical critical exponent of disordered Ising chains under transverse fields to examine the effect of a correlated disorder on quantum phase transitio…
Resolving Discrepancy between Liouvillian Gap and Relaxation Time in Boundary-Dissipated Quantum Many-Body Systems
Takashi Mori, Tatsuhiko Shirai
The gap of the Liouvillian spectrum gives the asymptotic decay rate of a quantum dissipative system, and therefore its inverse has been identified as the slowest relaxation time. I…