Eigenstates of Operating Quantum Computer: Hypersensitivity to Static Imperfections

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dc.creatorBenenti, Giuliano
dc.creatorCasati, Giulio
dc.creatorMontangero, Simone
dc.creatorShepelyansky, Dima L.
dc.date2001-12-21
dc.date.accessioned2026-07-07T06:03:24Z
dc.date.available2026-07-07T06:03:24Z
dc.descriptionWe study the properties of eigenstates of an operating quantum computer which simulates the dynamical evolution in the regime of quantum chaos. Even if the quantum algorithm is polynomial in number of qubits $n_q$, it is shown that the ideal eigenstates become mixed and strongly modified by static imperfections above a certain threshold which drops exponentially with $n_q$. Above this threshold the quantum eigenstate entropy grows linearly with $n_q$ but the computation remains reliable during a time scale which is polynomial in the imperfection strength and in $n_q$.
dc.descriptionrevtex, 4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/quant-ph/0112132
dc.identifierhttp://arxiv.org/abs/quant-ph/0112132
dc.identifierEur. Phys. J. D 20 (2002) 293
dc.identifierdoi:10.1140/epjd/e2002-00127-x
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/89929
dc.subjectQuantum Physics
dc.subjectCondensed Matter
dc.subjectChaotic Dynamics
dc.titleEigenstates of Operating Quantum Computer: Hypersensitivity to Static Imperfections
dc.typetext

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