title: Extracting work from magnetic-field-coupled Brownian particles.
abstract: Thermodynamics of the magnetic-field-coupled Brownian particles is studied. We show that in the presence of the magnetic field, work can be extracted from the reservoir even when the measurement operation and the potential change operation are applied in different spatial directions. In particular, we show that more work can be extracted if the measurements are applied in two different directions simultaneously. In all these cases, we show that the generalized second law involving the measurement information and potential change is satisfied. In addition, we show how the continuous potential change and measurement position affect the work extraction.
authors.affiliation: State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, People's Republic of China and Center for Controlled Quantum Systems and the Department of Physics and Engineering Physics, Stevens Institute of Technology, Hoboken, New Jersey 07030, USA and Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China.
authors.forename: Tian
authors.initials: T
authors.lastname: Chen
authors.affiliation: State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, People's Republic of China and Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China and Jinan Institute of Quantum Technology, Shandong Academy of Information and Communication Technology, Jinan 250101, People's Republic of China.
authors.forename: Xiang-Bin
authors.initials: XB
authors.lastname: Wang
authors.affiliation: Center for Controlled Quantum Systems and the Department of Physics and Engineering Physics, Stevens Institute of Technology, Hoboken, New Jersey 07030, USA.
authors.forename: Ting
authors.initials: T
authors.lastname: Yu
mesh_terms: D060526:Magnetic Fields; D008962:Models, Theoretical; D013816:Thermodynamics