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Superconducting qubits

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arxiv 0805.0164 v1 pith:EZF6Q7MF submitted 2008-05-01 cond-mat.supr-con cond-mat.mes-hall

classification cond-mat.supr-concond-mat.mes-hall
keywords qubitsmacroscopicquantumsuperconductingbeenbetterboundarybrought
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From a physicist's standpoint, the most interesting part of quantum computing research may well be the possibility to probe the boundary between the quantum and the classical worlds. The more macroscopic are the structures involved, the better. So far, the most "macroscopic" qubit prototypes that have been studied in the laboratory are certain kinds of superconducting qubits. To get a feeling for how macroscopic these systems can be, the states of flux qubits which are brought in a quantum superposition corresponds to currents composed of as much as 10^5-10^6 electrons flowing in opposite directions in a superconducting loop. Non-superconducting qubits realized so far are all essentially microscopic.

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  1. Quantum bits with Josephson junctions

    quant-ph 2019-08 unverdicted

    A review chapter explaining how Josephson junctions are used to build quantum bits, their circuits, and their applications to quantum computing and quantum optics.

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