Purifying teleportation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F23%3A00577671" target="_blank" >RIV/68378271:_____/23:00577671 - isvavai.cz</a>
Result on the web
<a href="https://hdl.handle.net/11104/0346801" target="_blank" >https://hdl.handle.net/11104/0346801</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.22331/q-2023-02-16-923" target="_blank" >10.22331/q-2023-02-16-923</a>
Alternative languages
Result language
angličtina
Original language name
Purifying teleportation
Original language description
Coupling to the environment typically suppresses quantum properties of physical systems via decoherence. This is one of the main obstacles in practical implementations of quantum protocols. We show how decoherence can be reversed/suppressed during quantum teleportation in a network scenario. Treating the environment quantumly, we show that under a general pure dephasing coupling, performing a second teleportation can probabilistically reverse the decoherence effects if certain commutativity conditions hold. This effect is purely quantum and most pronounced for qubit systems, where in 25% of instances the decoherence can be reversed completely. We show the effect in a physical model of a qubit register coupled to a bosonic bath. We also analyze general d-dimensional systems, identifying all instances of decoherence suppression. Our results are proof-of-concept but will be relevant for the emerging field of quantum networks as teleportation is the key building block of network protocols.n
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
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Quantum
ISSN
2521-327X
e-ISSN
2521-327X
Volume of the periodical
7
Issue of the periodical within the volume
Feb.
Country of publishing house
AT - AUSTRIA
Number of pages
16
Pages from-to
923
UT code for WoS article
000935221900001
EID of the result in the Scopus database
2-s2.0-85149637538