Quantum simulation of parity-time symmetry breaking with a superconducting quantum processor

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

5 Sitaatiot (Scopus)
32 Lataukset (Pure)

Abstrakti

The observation of genuine quantum effects in systems governed by non-Hermitian Hamiltonians has been an outstanding challenge in the field. Here we simulate the evolution under such Hamiltonians in the quantum regime on a superconducting quantum processor by using a dilation procedure involving an ancillary qubit. We observe the parity-time (PT)-symmetry breaking phase transition at the exceptional points, obtain the critical exponent, and show that this transition is associated with a loss of state distinguishability. In a two-qubit setting, we show that the entanglement can be modified by local operations.

AlkuperäiskieliEnglanti
Artikkeli26
Sivumäärä8
JulkaisuCommunications physics
Vuosikerta4
Numero1
DOI - pysyväislinkit
TilaJulkaistu - jouluk. 2021
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

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