<div class="csl-bib-body">
<div class="csl-entry">Rabl, P. (2022, September 8). <i>Quantum communication in bosonic & hybrid quantum networks</i> [Presentation]. TU Munich, Germany, Germany. http://hdl.handle.net/20.500.12708/153042</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/153042
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dc.description.abstract
We investigate the deterministic generation and distribution of entanglement in large quantum networks by driving distant qubits with the output fields of a nondegenerate parametric amplifier. In this setting, the amplifier produces a continuous Gaussian two-mode squeezed state, which acts as a quantum-correlated reservoir for the qubits and relaxes them into a highly entangled steady state. Here we are interested in the maximal amount of entanglement and the optimal entanglement generation rates that can be achieved with this scheme under realistic conditions taking, in particular, the finite amplifier bandwidth, waveguide losses, and propagation delays into account. By combining exact numerical simulations of the full network with approximate analytic results, we predict the optimal working point for the amplifier and the corresponding qubit-qubit entanglement under various conditions. Our findings show that this passive conversion of Gaussian into discrete-variable entanglement offers a robust and experimentally very attractive approach for operating large optical, microwave, or hybrid quantum networks, for which efficient parametric amplifiers are currently developed.
en
dc.language.iso
en
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dc.subject
quantum networks by driving distant qubits
en
dc.title
Quantum communication in bosonic & hybrid quantum networks
en
dc.type
Presentation
en
dc.type
Vortrag
de
dc.type.category
Presentation
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tuw.researchTopic.id
C1
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tuw.researchTopic.name
Computational Materials Science
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tuw.researchTopic.value
100
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tuw.publication.orgunit
E141-08 - Forschungsbereich Quantum Optics and Quantum Information