English

Phonon mediated non-equilibrium correlations and entanglement between distant semiconducting qubits

Mesoscale and Nanoscale Physics 2020-11-30 v1 Quantum Physics

Abstract

We theoretically study the non-equilibrium correlations and entanglement between distant semiconductor qubits in a one-dimensional coupled-mechanical-resonator chain. Each qubit is defined by a double quantum dot (DQD) and embedded in a mechanical resonator. The two qubits can be coupled, correlated and entangled through phonon transfer along the resonator chain. We calculate the non-equilibrium correlations and steady-state entanglement at different phonon-phonon coupling rates, and find a maximal steady entanglement induced by a population inversion. The results suggest that highly tunable correlations and entanglement can be generated by phonon-qubit hybrid system, which will contribute to the development of mesoscopic physics and solid-state quantum computation.

Keywords

Cite

@article{arxiv.2011.13394,
  title  = {Phonon mediated non-equilibrium correlations and entanglement between distant semiconducting qubits},
  author = {Di Yu and Zhi-Meng Guo and Guang-Wei Deng},
  journal= {arXiv preprint arXiv:2011.13394},
  year   = {2020}
}
R2 v1 2026-06-23T20:32:02.331Z