Mechanical Oscillator Can Excite an Atom Through the Quantum Vacuum
- URL: http://arxiv.org/abs/2106.14206v1
- Date: Sun, 27 Jun 2021 11:35:03 GMT
- Title: Mechanical Oscillator Can Excite an Atom Through the Quantum Vacuum
- Authors: Miao Yin
- Abstract summary: We consider a two-photon Rabi model with one of the cavity mirrors connected by a mechanical oscillator in strong-coupling regime.
We find that when the cavity is in its vacuum state, there exists a resonant coupling between the atom and mechanical oscillator.
Our theory reveals a kind of novel effective interaction and may find applications ranging from quantum information to nanotechnology.
- Score: 6.89885350810882
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We consider a two-photon Rabi model with one of the cavity mirrors connected
by a mechanical oscillator in strong-coupling regime. We find that when the
cavity is in its vacuum state, there exists a resonant coupling between the
atom and mechanical oscillator even if the quality factor of the cavity is
ultra low. The coupling is coherent and can be achieved by the exchange of
virtual photon pairs induced by dynamical Casimir effect. Moreover, when
considering the one-photon Rabi model, we find that the atom can absorb one
photon from a virtual photon pair, leaving the other converting to a real
photon. The behavior shows analogy with the well-known Hawking radiation. The
parameters used in our theoretical models are all feasible data in experiments
at present. Our theory reveals a kind of novel effective interaction and may
find applications ranging from quantum information to nanotechnology.
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