Efficient entanglement of spin qubits mediated by a hot mechanical oscillator
Localized electronic and nuclear spin qubits in the solid state constitute a promising platform for storage and manipulation of quantum information, even at room temperature. However, the development of scalable systems requires the ability to entangle distant spins, which remains a challenge today....
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| creator | Rosenfeld, Emma Riedinger, Ralf Gieseler, Jan Schuetz, Martin Lukin, Mikhail D |
| description | Localized electronic and nuclear spin qubits in the solid state constitute a promising platform for storage and manipulation of quantum information, even at room temperature. However, the development of scalable systems requires the ability to entangle distant spins, which remains a challenge today. We propose and analyze an efficient, heralded scheme that employs a parity measurement in a decoherence free subspace to enable fast and robust entanglement generation between distant spin qubits mediated by a hot mechanical oscillator. We find that high-fidelity entanglement at cryogenic and even ambient temperatures is feasible with realistic parameters, and show that the entangled pair can be subsequently leveraged for deterministic controlled-NOT operations between nuclear spins. Our results open the door for novel quantum processing architectures for a wide variety of solid-state spin qubits. |
| doi_str_mv | 10.48550/arxiv.2011.02623 |
| format | Article |
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| subjects | Cryogenic temperature Electron spin Mechanical oscillators Nuclear spin Physics - Quantum Physics Quantum entanglement Quantum phenomena Qubits (quantum computing) Room temperature Solid state |
| title | Efficient entanglement of spin qubits mediated by a hot mechanical oscillator |
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