Entanglement transfer, accumulation and retrieval via quantum-walk-based qubit-qudit dynamics

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F21%3A73606678" target="_blank" >RIV/61989592:15310/21:73606678 - isvavai.cz</a>
Result on the web
<a href="https://iopscience.iop.org/article/10.1088/2058-9565/abe8ca/pdf" target="_blank" >https://iopscience.iop.org/article/10.1088/2058-9565/abe8ca/pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1367-2630/abdbe1" target="_blank" >10.1088/1367-2630/abdbe1</a>

Result language
angličtina
Original language name
Entanglement transfer, accumulation and retrieval via quantum-walk-based qubit-qudit dynamics
Original language description
The generation and control of quantum correlations in high-dimensional systems is a major challenge in the present landscape of quantum technologies. Achieving such non-classical high-dimensional resources will potentially unlock enhanced capabilities for quantum cryptography, communication and computation. We propose a protocol that is able to attain entangled states of d-dimensional systems through a quantum-walk (QW)-based transfer & accumulate mechanism involving coin and walker degrees of freedom. The choice of investigating QW is motivated by their generality and versatility, complemented by their successful implementation in several physical systems. Hence, given the cross-cutting role of QW across quantum information, our protocol potentially represents a versatile general tool to control high-dimensional entanglement generation in various experimental platforms. In particular, we illustrate a possible photonic implementation where the information is encoded in the orbital angular momentum and polarization degrees of freedom of single photons.
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
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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