Universal Unitary Transfer of Continuous-Variable Quantum States into a Few Qubits

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F22%3A73612597" target="_blank" >RIV/61989592:15310/22:73612597 - isvavai.cz</a>
Result on the web
<a href="https://journals.aps.org/prl/pdf/10.1103/PhysRevLett.128.110503" target="_blank" >https://journals.aps.org/prl/pdf/10.1103/PhysRevLett.128.110503</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevLett.128.110503" target="_blank" >10.1103/PhysRevLett.128.110503</a>

Result language
angličtina
Original language name
Universal Unitary Transfer of Continuous-Variable Quantum States into a Few Qubits
Original language description
We present a protocol for transferring arbitrary continuous-variable quantum states into a few discrete variable qubits and back. The protocol is deterministic and utilizes only two-mode Rabi-type interactions that are readily available in trapped-ion and superconducting circuit platforms. The inevitable errors caused by transferring an infinite-dimensional state into a finite-dimensional register are suppressed exponentially with the number of qubits. Furthermore, the encoded states exhibit robustness against noise, such as dephasing and amplitude damping, acting on the qubits. Our protocol thus provides a powerful and flexible tool for discrete-continuous hybrid quantum systems.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10306 - Optics (including laser optics and quantum optics)

Project
<a href="/en/project/GX21-13265X" target="_blank" >GX21-13265X: Quantum non-Gaussian coherence</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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