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3 papers
Diagnosing phase transitions through time-scale entanglement
Stefan Rohshap, Hirone Ishida, Frederic Bippus +5
Spatial entanglement of quantum states has become a central paradigm of many-body physics. Here, we unearth a fundamentally different form of entanglement, the entanglement between…
AC/DC spin current in ferromagnet/superconductor/normal metal trilayer systems
Koki Mizuno, Hirone Ishida, Manato Teranishi
Spin pumping with superconductors has been extensively studied, particularly in double-layer systems. In this study, we investigate spin pumping in a trilayer system comprising a f…
Low-rank quantics tensor train representations of Feynman diagrams for multiorbital electron-phonon models
Hirone Ishida, Natsuki Okada, Shintaro Hoshino +1
Feynman diagrams are an essential tool for simulating strongly correlated electron systems. However, stochastic quantum Monte Carlo sampling suffers from the sign problem, particul…