7 papers
Optimal Control to Minimize Dissipation and Fluctuations in Open Quantum Systems Beyond Slow and Rapid Regimes
Yuki Kurokawa, Yoshihiko Hasegawa
Optimal control is a central problem in quantum thermodynamics. When minimizing dissipated work and work fluctuations defined via the two-point measurement scheme in open quantum s…
Sparse QUBO Formulation for Efficient Embedding via Network-Based Decomposition of Equality and Inequality Constraints
Kohei Suda, Soshun Naito, Yoshihiko Hasegawa
Quantum annealing is a promising approach for solving combinatorial optimization problems. However, its performance is often limited by the overhead of additional qubits required f…
Thermodynamic Recycling of Algorithmic Failure Branches: Quantum-Computer Demonstration with Quantum Error Correction
Nobumasa Ishida, Yoshihiko Hasegawa
Thermodynamic trade-off relations dictate fundamental limits on the performance of thermodynamic tasks through costs such as heat dissipation. Here, we propose a framework called t…
Energy Inference of Black-Box Quantum Computers Using Quantum Speed Limit
Nobumasa Ishida, Yoshihiko Hasegawa
Cloud-based quantum computers do not provide users with access to hardware-level information such as the underlying Hamiltonians, which obstructs the characterization of their phys…
Entropic trade-off relations in stochastic thermodynamics via replica Markov processes
Yoshihiko Hasegawa
Traditional thermodynamic trade-off relations usually apply to quantities that depend linearly on probability distributions. In contrast, many important information-theoretic measu…
Quantum Speed Limit and Quantum Thermodynamic Uncertainty Relation under Feedback Control
Hayato Yunoki, Yoshihiko Hasegawa
Fundamental trade-off relations, such as quantum speed limit and quantum thermodynamic uncertainty relation, describe the performance limits of quantum systems by imposing that imp…