0000000000531171

AUTHOR

ČAslav Brukner

showing 2 related works from this author

A scheme for entanglement extraction from a solid

2006

Some thermodynamical properties of solids, such as heat capacity and magnetic susceptibility, have recently been shown to be linked to the amount of entanglement in a solid. However this entanglement may appear a mere mathematical artifact of the typical symmetrization procedure of many-body wave function in solid state physics. Here we show that this entanglement is physical demonstrating the principles of its extraction from a typical solid state system by scattering two particles off the system. Moreover we show how to simulate this process using present-day optical lattices technology. This demonstrates not only that entanglement exists in solids but also that it can be used for quantum…

PhysicsQuantum PhysicsSolid-state physicsCondensed Matter - Mesoscale and Nanoscale PhysicsScatteringProcess (computing)General Physics and AstronomyFOS: Physical sciencesQuantum entanglementQuantum PhysicsHeat capacityMagnetic susceptibilitySTATEATOMSMesoscale and Nanoscale Physics (cond-mat.mes-hall)QUANTUM PHASE-TRANSITIONSymmetrizationStatistical physicsWave functionQuantum Physics (quant-ph)
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Can entanglement be extracted from many body systems?

2007

Some thermodynamical properties of solids, such as heat capacity and magnetic susceptibility, have recently been shown to be linked to the amount of entanglement in a solid. Until now, however, it was not clear whether this entanglement can be used as a resource in quantum information theory. Here we show that this entanglement is physical, demonstrating the principles of its extraction from a typical spin chain by scattering two particles off the system. Moreover, we show how to simulate this process using present-day optical lattice technology. © 2007 World Scientific Publishing Company.

PhysicsOptical latticePhysics and Astronomy (miscellaneous)ScatteringCURRENT SITUATIONQuantum entanglementSquashed entanglementHeat capacityMultipartite entanglementATOMSQuantum mechanicsQUANTUM PHASE-TRANSITIONMECHANICSQuantum informationAmplitude damping channelCONTROLLED COLLISIONS
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