Quantum repeaters based on individual electron spins and nuclear-spin-ensemble memories in quantum dots

• DOI: 10.22331/q-2021-11-02-570
• Publication Date: 2021-11-02T10:38:07Z
• Authors: Kenneth Sharman; Faezeh Kimiaee Asadi; Stephen C Wein; Christoph Simon
• Keywords: Quantum sensor

Inspired by recent developments in the control and manipulation of quantum dot nuclear spins, which allow for transfer an electron spin state to surrounding nuclear-spin ensemble storage, we propose a repeater scheme that combines individual spins ensembles, serve as spin-photon interfaces memories respectively. We consider use low-strain dots embedded high-cooperativity optical microcavities. Quantum ensembles long-term storage entangled states, heralded entanglement swapping is performed using cavity-assisted gates. highlight advances technologies required realize our promises establishment high-fidelity over long distances with distribution rate exceeding direct transmission photons.