8 citations · 9 across the 4 of their papers we have counts for
20 papers · 1 filter
Toward a Complexity Classification of High-Temperature Bosons: Computational Tractability and Power-Law Clustering
Xin-Hai Tong, Tomotaka Kuwahara
Determining when quantum many-body systems admit simple, efficiently simulable structure is a central problem. High-temperature thermal states are a natural candidate for such simp…
Trotterization is substantially efficient for low-energy states
Kaoru Mizuta, Tomotaka Kuwahara
Trotterization is one of the central approaches for simulating quantum many-body dynamics on quantum computers or tensor networks. In addition to its simple implementation, recent…
Clustering of Conditional Mutual Information via Quantum Belief-Propagation Channels
Kohtaro Kato, Tomotaka Kuwahara
Conditional mutual information (CMI) has recently attracted significant attention as a key quantity for characterizing quantum correlations in many-body systems. While it is conjec…
Macroscopic Particle Transport in Dissipative Long-Range Bosonic Systems
Hongchao Li, Cheng Shang, Tomotaka Kuwahara +1
Dissipation in quantum many-body systems provides a more general and experimentally realistic perspective on particle transport than closed quantum systems. In this work, we determ…
Entanglement area law in interacting bosons: from Bose-Hubbard, 4, and beyond
Donghoon Kim, Tomotaka Kuwahara
The entanglement area law is a universal principle that characterizes the information structure in quantum many-body systems and serves as the foundation for modern algorithms base…
Quantum complexity and generalized area law in fully connected models
Donghoon Kim, Tomotaka Kuwahara
The area law for entanglement entropy fundamentally reflects the complexity of quantum many-body systems, demonstrating ground states of local Hamiltonians to be represented with l…