We discuss charge density wave transport as the periodic flow of a quantum fluid of electron–phonon correlates, viewed as quantum solitons, within the condensate. Pair creation of charged soliton droplets is prevented by their electrostatic energy below a Coulomb-blockade threshold electric field. Above threshold, the quantum fluid flows in drip-like fashion as microscopic entities tunnel coherently from one charging energy macrostate to the next. We summarize the time-correlated soliton tunneling model and compare simulations of coherent oscillations, narrow band noise, and current–voltage characteristics with experiment. We also explore the possibility of collective quantum behavior at room temperature in some materials. Finally, we discuss potential applications in quantum information processing.
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3 May 2021
Research Article|
May 04 2021
Quantum fluidic charge density wave transport
Special Collection:
Charge-Density-Wave Quantum Materials and Devices
John H. Miller, Jr.
;
John H. Miller, Jr.
a)
Department of Physics and Texas Center for Superconductivity, University of Houston
, Houston, Texas 77204-5005, USA
a)Author to whom correspondence should be addressed: [email protected]
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M. Y. Suárez-Villagrán
M. Y. Suárez-Villagrán
Department of Physics and Texas Center for Superconductivity, University of Houston
, Houston, Texas 77204-5005, USA
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a)Author to whom correspondence should be addressed: [email protected]
Note: This paper is part of the APL Special Collection on Charge-Density-Wave Quantum Materials and Devices.
Appl. Phys. Lett. 118, 184002 (2021)
Article history
Received:
February 26 2021
Accepted:
April 21 2021
Citation
John H. Miller, M. Y. Suárez-Villagrán; Quantum fluidic charge density wave transport. Appl. Phys. Lett. 3 May 2021; 118 (18): 184002. https://doi.org/10.1063/5.0048834
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