Experimental realization of nonunitary multi-qubit operations

Fuente: arXiv
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Main Authors: van Mourik, Martin W., Zapusek, Elias, Hrmo, Pavel, Gerster, Lukas, Blatt, Rainer, Monz, Thomas, Schindler, Philipp, Reiter, Florentin
Format: Preprint
Published: 2023
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author van Mourik, Martin W.
Zapusek, Elias
Hrmo, Pavel
Gerster, Lukas
Blatt, Rainer
Monz, Thomas
Schindler, Philipp
Reiter, Florentin
author_facet van Mourik, Martin W.
Zapusek, Elias
Hrmo, Pavel
Gerster, Lukas
Blatt, Rainer
Monz, Thomas
Schindler, Philipp
Reiter, Florentin
contents We demonstrate a novel experimental toolset that enables irreversible multi-qubit operations on a quantum platform. To exemplify our approach, we realize two elementary nonunitary operations: the OR and NOR gates. The electronic states of two trapped $^{40}$Ca$^{+}$ ions encode the logical information, and a co-trapped $^{88}$Sr$^{+}$ ion provides the irreversibility of the gate by a dissipation channel through sideband cooling. We measure $87\%$ and $81\%$ success rates for the OR and NOR gates, respectively. The presented methods are a stepping stone towards other nonunitary operations such as in quantum error correction and quantum machine learning.
format Preprint
id arxiv_https___arxiv_org_abs_2303_06098
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Experimental realization of nonunitary multi-qubit operations
van Mourik, Martin W.
Zapusek, Elias
Hrmo, Pavel
Gerster, Lukas
Blatt, Rainer
Monz, Thomas
Schindler, Philipp
Reiter, Florentin
Quantum Physics
Atomic Physics
We demonstrate a novel experimental toolset that enables irreversible multi-qubit operations on a quantum platform. To exemplify our approach, we realize two elementary nonunitary operations: the OR and NOR gates. The electronic states of two trapped $^{40}$Ca$^{+}$ ions encode the logical information, and a co-trapped $^{88}$Sr$^{+}$ ion provides the irreversibility of the gate by a dissipation channel through sideband cooling. We measure $87\%$ and $81\%$ success rates for the OR and NOR gates, respectively. The presented methods are a stepping stone towards other nonunitary operations such as in quantum error correction and quantum machine learning.
title Experimental realization of nonunitary multi-qubit operations
topic Quantum Physics
Atomic Physics
url https://arxiv.org/abs/2303.06098