3 papers
quant-ph2024
Upper Bound on Locally Extractable Energy from Entangled Pure State under Feedback Control
Kanji Itoh, Yusuke Masaki, Hiroaki Matsueda
We introduce an effective thermodynamics for multipartite entangled pure states and derive an upper bound on extractable energy with feedback control from a subsystem under a local…
quant-ph2023
Quantum Energy Teleportation and Entropy Change due to Feedback Control in One-Dimensional Heisenberg Model
Kanji Itoh, Yusuke Masaki, Hiroaki Matsueda
We study the quantum energy teleportation in a four-spin one-dimensional Heisenberg model. A local magnetic field is applied at the edge sites to control the degree of the ground-s…
cond-mat.supr-con2023
Photoinduced pseudospin-wave emission from charge-density-wave domain wall with superconductivity
Yukihiro Matsubayashi, Yusuke Masaki, Hiroaki Matsueda
We study photoinduced dynamics triggered by an inhomogeneity due to competition between charge density waves (CDWs) and superconductivity. As a simple example, we consider the supe…