Charging advantages of Lipkin-Meshkov-Glick quantum battery
- URL: http://arxiv.org/abs/2208.04831v1
- Date: Tue, 9 Aug 2022 15:15:59 GMT
- Title: Charging advantages of Lipkin-Meshkov-Glick quantum battery
- Authors: Fu-Quan Dou, Yuan-Jin Wang, Jian-An Sun
- Abstract summary: We investigate the performance of the Lipkin-Meshkov-Glick quantum battery based on shortcuts to adiabaticity (STA)
The charging efficiency of the quantum battery can be greatly enhanced via STA.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We investigate the performance of the Lipkin-Meshkov-Glick quantum battery
based on shortcuts to adiabaticity (STA). We mainly consider the situation
where the coupling strength of any two sites in the quantum battery is a
sinusoidal function with respect to time. The charging efficiency of the
quantum battery can be greatly enhanced via STA. We also analyze the influences
of parameters, including particle number, anisotropic parameter, the amplitude
and frequency of the driving fields. It is found that an efficient charging
process and thus high charging advantages can be achieved by adjusting these
parameters properly. Moreover, we calculate the energy fluctuation, von Neumann
entropy and energy cost during charging. The STA can make the stored energy and
the von Neumann entropy change periodically during the charging process and
reduce the energy fluctuation, and the minimal energy fluctuation always occurs
in the proximity of minima of the von Neumann entropy.
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