Cooperative quantum information erasure
- URL: http://arxiv.org/abs/2206.10230v3
- Date: Mon, 20 Mar 2023 15:56:47 GMT
- Title: Cooperative quantum information erasure
- Authors: Lorenzo Buffoni and Michele Campisi
- Abstract summary: We demonstrate an information erasure protocol that resets $N$ qubits at once.
The method displays exceptional performances in terms of energy cost.
Such cooperative quantum erasure protocol could be readily applied in next generation hybrid gate-based/quantum-annealing quantum computers.
- Score: 6.85316573653194
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We demonstrate an information erasure protocol that resets $N$ qubits at
once. The method displays exceptional performances in terms of energy cost (it
operates nearly at Landauer energy cost $kT \ln 2$), time duration ($\sim \mu
s$) and erasure success rate ($\sim 99,9\%$). The method departs from the
standard algorithmic cooling paradigm by exploiting cooperative effects
associated to the mechanism of spontaneous symmetry breaking which are
amplified by quantum tunnelling phenomena. Such cooperative quantum erasure
protocol is experimentally demonstrated on a commercial quantum annealer and
could be readily applied in next generation hybrid gate-based/quantum-annealing
quantum computers, for fast, effective, and energy efficient initialisation of
quantum processing units.
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