6 citations · 9 across the 6 of their papers we have counts for
5 papers · 1 filter
Quantum Krylov Learning
Shunji Matsuura, Yoji Kawamura, Joseph Salfi +1
The Hamiltonian of a natural quantum system is usually determined indirectly, by proposing microscopic models and comparing their predicted observables with experiment. A more dire…
Krylov Break Times from an Inhomogeneous Lieb--Robinson Light Cone
Shunji Matsuura, Yoji Kawamura, Joseph Salfi +1
Krylov and Lanczos approximations are used in quantum dynamics, quantum subspace methods, and Hamiltonian learning. A practical question is how long an -dimensional Krylov trunc…
Learning Quantum Operator Dynamics from Short-Time Data
Jinyang Li, Satoshi Iso, Shunji Matsuura +2
Real-time dynamics of quantum observables provide direct access to excitation spectra and correlation functions in quantum many-body systems, but currently available quantum device…
Towards a spatial cat state of a massive pendulum
Satoshi Iso, Jinyang Li, Nobuyuki Matsumoto +1
We propose an experiment for constructing a spatial cat state of a suspended mirror with an order of (mg). The mirror is set at the center of two mirrors, creating two…
Violation of the two-time Leggett-Garg inequalities for a harmonic oscillator
Kosei Hatakeyama, Daisuke Miki, Masaki Tani +5
We investigate the violation of the Leggett-Garg inequalities for a harmonic oscillator in various quantum states. We focus on the two-time quasi-probability distribution function…