Decoherence-Resilient Linear Optical Two-Qubit Quantum Gate
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F20%3A73603435" target="_blank" >RIV/61989592:15310/20:73603435 - isvavai.cz</a>
Result on the web
<a href="https://obd.upol.cz/id_publ/333183321" target="_blank" >https://obd.upol.cz/id_publ/333183321</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevApplied.14.054066" target="_blank" >10.1103/PhysRevApplied.14.054066</a>
Alternative languages
Result language
angličtina
Original language name
Decoherence-Resilient Linear Optical Two-Qubit Quantum Gate
Original language description
Quantum information can be protected from noise and decoherence by encoding it into a decoherencefree subspace of the full Hilbert space. In this approach, it is important to devise implementations of quantum logic gates acting on the encoded logical qubits. Here, we experimentally investigate the implementation of an entangling linear optical controlled -Z gate on two logical qubits encoded into pairs of physical qubits, which protects the quantum information from collective dephasing. This decoherenceresilient two-qubit gate on logical qubits is realized using a suitable four-qubit quantum gate on the physical qubits, which may help to protect the encoded quantum information from systematic errors arising due to imperfect operations on single logical qubits. We characterize the gate operation on input superposition states and demonstrate its ability to protect quantum coherence even under complete collective dephasing.
Czech name
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Czech description
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Classification
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)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review Applied
ISSN
2331-7019
e-ISSN
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Volume of the periodical
14
Issue of the periodical within the volume
5
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
"054066-1"-"054066-10"
UT code for WoS article
000595917400003
EID of the result in the Scopus database
2-s2.0-85097584932