Quantum Computing by Coherent Cooling

Feng, Jia-Jin (författare)

Wu, Biao (författare)

Wilczek, Frank (författare): Stockholms universitet,Fysikum,Massachusetts Institute of Technology, USA; Shanghai Jiao Tong University, China; Arizona State University, USA

(creator_code:org_t)

2022
2022
Engelska.
Ingår i: Physical Review A: covering atomic, molecular, and optical physics and quantum information. - 2469-9926 .- 2469-9934. ; 105:5

Relaterad länk:: https://arxiv.org/ab...; visa fler...; https://urn.kb.se/re...; https://doi.org/10.1...; visa färre...

Abstract Ämnesord

Stäng

Interesting problems in quantum computation take the form of finding low-energy states of (pseudo)spin systems with engineered Hamiltonians that encode the problem data. Motivated by the practical possibility of producing very low-temperature spin systems, we propose and exemplify the possibility to compute by coupling the computational spins to a quantum coherent bath that serves as a heat sink. The quantum tunneling effect provides additional cooling channels to accelerate the cooling process. We demonstrate both analytically and numerically that this strategy can achieve a quantum advantage in the unstructured search problem.

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