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Steady-state tunable entanglement thermal machine using quantum dots
Journal
Quantum Science and Technology
Date Issued
2022-10-01
Author(s)
Das, Anuranan
Khan, Adil Anwar
Mishra, Sattwik Deb
Solanki, Parvinder
De, Bitan
Muralidharan, Bhaskaran
Vinjanampathy, Sai
Abstract
We propose a solid state thermal machine based on quantum dots to generate steady-state entanglement between distant spins. Unlike previous approaches our system can be 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.
Subjects