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Akademický článek
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Publikováno v:
New Journal of Physics, Vol 25, Iss 12, p 123020 (2023)
We show that the nearest neighbour entanglement in a mixture of ground and first excited states—a subjacent state—of the $J_1-J_2$ Heisenberg quantum spin chain can be used as an order parameter to detect the phase transition of the chain from a
Externí odkaz:
https://doaj.org/article/8bbac5ae220448fbae3e0c5cdcb66a4c
Publikováno v:
Physical Review A. 107
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11fb16b795036b1aa3874e40059229f2
https://doi.org/10.1103/physreva.107.052214
https://doi.org/10.1103/physreva.107.052214
Publikováno v:
Physical Review A. 107
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bae77d91edc6cfef20866c65f9fe7a68
https://doi.org/10.1103/physreva.107.032406
https://doi.org/10.1103/physreva.107.032406
Publikováno v:
Physical Review A. 107
We analyze the robustness of Grover's quantum search algorithm performed by a quantum register under a possibly time-correlated noise acting locally on the qubits. We model the noise as originating from an arbitrary but fixed unitary evolution, $U$,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c538b298ec72635c7205fbe3243215b
https://doi.org/10.1103/physreva.107.022427
https://doi.org/10.1103/physreva.107.022427
Autor:
Ahana Ghoshal, Ujjwal Sen
We examine the elements of the balance equation of entropy in open quantum evolutions and their response as we go from a Markovian to a non-Markovian situation. In particular, we look at the heat current and entropy production rate in the non-Markovi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::67ee7b8491c42ccc9068f82ce8f96a38
We show that quantum absorption refrigerators, which have traditionally been studied as of three qubits, each of which is connected to a thermal reservoir, can also be constructed by using three qubits and two thermal baths, where two of the qubits,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c467e3b21c4ddc35c9555c4314966c79
We show that a quantum thermal transistor can also cause the transistor effect - where one out of three terminals can control the flow of heat current in the other two - with good amplification properties in the transient regime for certain paradigma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa56829af653398512417467c54c7a50
We establish a lower bound on the quantum coherence of an arbitrary quantum state in arbitrary dimension, using a noncommutativity estimator of an arbitrary observable of sub-unit norm, where the estimator is the commutator of the observable and its
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e1c6161a58687877abc10d6ed90d6b70
We find that a suppression of the collapse and revival of population inversion occurs in response to insertion of Gaussian quenched disorder in atom-cavity interaction strength in the Jaynes-Cummings model. The character of suppression can be signifi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5195d4e73b531c316930fd878e8373cb
http://arxiv.org/abs/1910.00249
http://arxiv.org/abs/1910.00249