English

Steady-State Tunable Entanglement Thermal Machine Using Quantum Dots

Quantum Physics 2021-12-23 v1 Mesoscale and Nanoscale Physics

Abstract

We present a solid state thermal machine based on quantum dots to generate steady-state entanglement between distant spins. Unlike previous approaches our system is controlled by experimentally feasible steady state currents manipulated by dc voltages. By analyzing the Liouvillian eigenspectrum as a function of the control parameters, we show that our device operates over a large voltage region. As an extension, the proposed device also works as an entanglement thermal machine under a temperature gradient that can even give rise to entanglement at zero voltage bias. Finally, we highlight a post-selection scheme based on currently feasible non-demolition measurement techniques that can generate perfect Bell-pairs from the steady state output of our thermal machine.

Keywords

Cite

@article{arxiv.2112.12020,
  title  = {Steady-State Tunable Entanglement Thermal Machine Using Quantum Dots},
  author = {Anuranan Das and Adil Anwar Khan and Sattwik Deb Mishra and Parvinder Solanki and Bitan De and Bhaskaran Muralidharan and Sai Vinjanampathy},
  journal= {arXiv preprint arXiv:2112.12020},
  year   = {2021}
}

Comments

10 pages, 3 figures, comments welcome

R2 v1 2026-06-24T08:28:12.594Z