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Asymmetric field photovoltaic effect of neutral atoms

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? 2021Photovoltaic effect of neutral atoms using inhomogeneous light in a double-trap opened system is studied theoretically. Using asymmetric external driving field to replacing original asymmetric chemical potential of atoms, we create polarization of atom population in the double-trap system. The polarization of atom number distribution induces net current of atoms and works as collected carriers in the cell. The cell can work even under partially coherent light. The whole configuration is described by quantum master equation considering weak tunneling between the system and its reservoirs at finite temperature. The model of neutral atoms could be extended to more general quantum particles in principle.

Asymmetric fieldNeutral atomsPhotovoltaic effectQuantum master equation

Lai W.、Ma Y.-Q.、Niu J.、Liu W.-M.

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School of Applied Science Beijing Information Science and Technology University

School of Science Inner Mongolia University of Science and Technology

Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences

2022

Optics Communications

Optics Communications

EISCI
ISSN:0030-4018
年,卷(期):2022.507
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