Exponentially enhanced gravitationally induced entanglement between
quantum systems with a two-phonon drive
- URL: http://arxiv.org/abs/2307.03657v1
- Date: Fri, 7 Jul 2023 15:23:11 GMT
- Title: Exponentially enhanced gravitationally induced entanglement between
quantum systems with a two-phonon drive
- Authors: Dianzhen Cui, X. X. Yi
- Abstract summary: We propose a protocol to enhance the detection of gravitationally induced entanglement by exploiting the two-phonon drive.
We consider a setup consisting of a test particle in a double-well potential, a qubit and a quantum mediator.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Finding a feasible protocol for probing the quantum nature of gravity has
been attracting an increasing amount of attention. In this manuscript, we
propose a protocol to enhance the detection of gravitationally induced
entanglement by exploiting the two-phonon drive in a hybrid quantum setup. We
consider the setup consisting of a test particle in a double-well potential, a
qubit and a quantum mediator. There is gravitational interaction between the
test particle and the mediator, and a spin-phonon coupling between the mediator
and the qubit. By introducing a two-phonon drive, the entanglement between the
TP and the qubit are significantly enhanced and the entanglement generation
rate is remarkably increased compared with the case without the two-phonon
drive. Moreover, the entanglement between the TP and the qubit can be partially
preserved in the presence of dephasing by the proposed strategy. This work
would open a different avenue for experimental detection of the quantum nature
of gravity, which could find applications in quantum information science.
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