Steady-State Tunable Entanglement Thermal Machine Using Quantum Dots

Anuranan Das; Adil Anwar Khan; Sattwik Deb Mishra; Parvinder Solanki; Bitan De; Bhaskaran Muralidharan; Sai Vinjanampathy

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arXiv · 2112.12020

Steady-State Tunable Entanglement Thermal Machine Using Quantum Dots

Anuranan Das·Adil Anwar Khan·Sattwik Deb Mishra·Parvinder Solanki·Bitan De·Bhaskaran Muralidharan·Sai Vinjanampathy

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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.

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Anuranan Das, Adil Anwar Khan, Sattwik Deb Mishra, Parvinder Solanki, Bitan De, Bhaskaran Muralidharan, Sai Vinjanampathy. 2021-12-22. Steady-State Tunable Entanglement Thermal Machine Using Quantum Dots. https://arxiv.org/abs/2112.12020

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