Search results for "Quantum algorithm"

showing 3 items of 103 documents

Why a Quantum Tool in Classical Contexts?

2012

Theoretical physicsQuantum discordQuantum probabilityQuantum dynamicsQuantum mechanicsQuantum processQuantum operationMethod of quantum characteristicsQuantum algorithmQuantum channelMathematicsQuantum Dynamics for Classical Systems
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Geometric Optimal Control of Simple Quantum Systems

2011

International audience

[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph]PhysicsN-LEVEL SYSTEMSQuantum dynamicsCONTROLLABILITYALGORITHMSTopology01 natural sciences[PHYS.PHYS.PHYS-AO-PH] Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph]010305 fluids & plasmasDYNAMICAL SEMIGROUPSQuantum probabilityOpen quantum systemClassical mechanics[ PHYS.PHYS.PHYS-AO-PH ] Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph]STATESQuantum error correctionQuantum process0103 physical sciencesQuantum phase estimation algorithmQuantum operationQuantum algorithm010306 general physicsComputingMilieux_MISCELLANEOUS
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Characterizing and Quantifying Frustration in Quantum Many-Body Systems

2011

We present a general scheme for the study of frustration in quantum systems. We introduce a universal measure of frustration for arbitrary quantum systems and we relate it to a class of entanglement monotones via an exact inequality. If all the (pure) ground states of a given Hamiltonian saturate the inequality, then the system is said to be inequality saturating. We introduce sufficient conditions for a quantum spin system to be inequality saturating and confirm them with extensive numerical tests. These conditions provide a generalization to the quantum domain of the Toulouse criteria for classical frustration-free systems. The models satisfying these conditions can be reasonably identifi…

frustrationmedia_common.quotation_subjectFOS: Physical sciencesGeneral Physics and AstronomyFrustrationQuantum capacityQuantum entanglement01 natural sciences010305 fluids & plasmasOpen quantum systemQuantum mechanics0103 physical sciencesQuantum operationStatistical physics010306 general physicsMathematical Physicsmedia_commonMathematicsQuantum PhysicsQuantum discordMathematical Physics (math-ph)Condensed Matter - Other Condensed MatterQuantum processQuantum algorithmCondensed Matter::Strongly Correlated ElectronsQuantum Physics (quant-ph)Other Condensed Matter (cond-mat.other)
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