Optimal Quantum Control of Charging Quantum Batteries
- URL: http://arxiv.org/abs/2207.00094v3
- Date: Wed, 20 Dec 2023 15:53:35 GMT
- Title: Optimal Quantum Control of Charging Quantum Batteries
- Authors: R. R. Rodriguez, B. Ahmadi, G. Suarez, P. Mazurek, S. Barzanjeh and P.
Horodecki
- Abstract summary: We develop a convergent iterative method for the control of the population of a bipartite quantum system.
We take into account experimentally viable problem of turning-on and off of the charging external field.
Optimising the shape of the pulse significantly boosts both the power and efficiency of the charging process.
- Score: 0.0
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Quantum control allows us to address the problem of engineering quantum
dynamics for special purposes. While recently the field of quantum batteries
has attracted much attention, optimization of their charging has not benefited
from the quantum control methods. Here we fill this gap by using an
optimization method. We apply for the first time this convergent iterative
method for the control of the population of a bipartite quantum system in two
cases, starting with a qubit-qubit case. The quantum charger-battery system is
considered here, where the energy is pumped into the charger by an external
classical electromagnetic field. Secondly, we systematically develop the
original formulation of the method for two harmonic oscillators in the Gaussian
regime. In both cases, the charger is considered to be an open dissipative
system. Our optimization takes into account experimentally viable problem of
turning-on and off of the charging external field. Optimising the shape of the
pulse significantly boosts both the power and efficiency of the charging
process in comparison to the sinusoidal drive. The harmonic oscillator setting
of quantum batteries is of a particular interest, as the optimal driving pulse
remains so independently of the temperature of environment.
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