We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Steady-state entanglement in a mechanically coupled double cavity containing magnetic spheres.
- Authors
Zhao, Yabo; Zhao, Ruiqing; Chen, Lanxin; Pan, Jingyu; Zhang, Mei
- Abstract
We study the steady-state entanglement in a mechanically coupled double cavity with levitating rigid magnetic spheres. We derive the linearized quantum Langevin equations for steady states, solve the Lyapunov equation for the quantum noises around the steady states, and adopt the logarithmic negativity to measure the steady-state entanglement. Numerical simulations show that steady-state entanglements between various components of the system, such as the photon–photon, the magnon–magnon, and the phonon–photon entanglements, can form by choosing experimentally feasible effective detunings, dissipation rates, and coupling rates. We also calculate the tripartite entanglement between magnon–photon–phonon. The entanglement is robust against the ambient temperature up to 80 mK. This work provides a prototype platform for the study of cross-cavity entanglement and entanglement transfer and may find itself applications in quantum information processing and quantum sensing.
- Subjects
QUANTUM information science; QUANTUM noise; LANGEVIN equations; EQUATIONS of state
- Publication
Quantum Information Processing, 2022, Vol 21, Issue 9, p1
- ISSN
1570-0755
- Publication type
Article
- DOI
10.1007/s11128-022-03653-z