Continuous variable multipartite vibrational entanglement
- URL: http://arxiv.org/abs/2102.13082v2
- Date: Sun, 16 May 2021 12:53:30 GMT
- Title: Continuous variable multipartite vibrational entanglement
- Authors: Mehdi Abdi
- Abstract summary: We show that a selected set of modes can be activated and prepared in a multipartite entangled state.
This work provides a step towards a compact and versatile device for creating multipartite noise-resilient entangled state in vibrational modes.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: A compact scheme for the preparation of macroscopic multipartite entanglement
is proposed and analyzed. In this scheme the vibrational modes of a mechanical
resonator constitute continuous variable (CV) subsystems that entangle to each
other as a result of their interaction with a two-level system (TLS). By
properly driving the TLS, we show that a selected set of modes can be activated
and prepared in a multipartite entangled state. We first study entanglement
properties of a three-mode system by evaluating the genuine multipartite
entanglement. And investigate its usefulness as a quantum resource by computing
the quantum Fisher information. Moreover, the robustness of the state against
the qubit and thermal noises is studied, proving a long-lived entanglement. To
examine the scalability and structural properties of the scheme, we derive an
effective model for the multimode system through elimination of the TLS
dynamics. This work provides a step towards a compact and versatile device for
creating multipartite noise-resilient entangled state in vibrational modes as a
resource for CV quantum metrology, quantum communication, and quantum
computation.
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