6533b7d0fe1ef96bd125aded

RESEARCH PRODUCT

Fast SWAP gate by adiabatic passage

Hans-rudolf JauslinStéphane GuérinNicolas SangouardX. Lacour

subject

PhysicsQuantum PhysicsQuantum decoherenceFOS: Physical sciencesUniversal setHardware_PERFORMANCEANDRELIABILITYTopologyAtomic and Molecular Physics and OpticsQuantum circuitComputer Science::Hardware ArchitectureQuantum gateComputer Science::Emerging Technologies[ PHYS.PHYS.PHYS-AO-PH ] Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph]Controlled NOT gateQuantum mechanicsHardware_INTEGRATEDCIRCUITSSpontaneous emissionQuantum Physics (quant-ph)Adiabatic processQuantum computerHardware_LOGICDESIGN

description

We present a process for the construction of a SWAP gate which does not require a composition of elementary gates from a universal set. We propose to employ direct techniques adapted to the preparation of this specific gate. The mechanism, based on adiabatic passage, constitutes a decoherence-free method in the sense that spontaneous emission and cavity damping are avoided.

10.1103/physreva.72.062309http://arxiv.org/abs/quant-ph/0505163