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Article overview
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Detection of Geometric Phases in Superconducting Nanocircuits | Giuseppe Falci
; Rosario Fazio
; G. Massimo Palma
; Jens Siewert
; Vlatko Vedral
; | Date: |
2 Nov 2000 | Journal: | Nature Vol. 407, 355 (2000) | Subject: | Mesoscopic Systems and Quantum Hall Effect | cond-mat.mes-hall quant-ph | Abstract: | When a quantum mechanical system undergoes an adiabatic cyclic evolution it acquires a geometrical phase factor in addition to the dynamical one. This effect has been demonstrated in a variety of microscopic systems. Advances in nanotechnologies should enable the laws of quantum dynamics to be tested at the macroscopic level, by providing controllable artificial two-level systems (for example, in quantum dots and superconducting devices). Here we propose an experimental method to detect geometric phases in a superconducting device. The setup is a Josephson junction nanocircuit consisting of a superconducting electron box. We discuss how interferometry based on geometrical phases may be realized, and show how the effect may applied to the design of gates for quantum computation. | Source: | arXiv, cond-mat/0011040 | Other source: | [GID 498491] pmid11014186 | Services: | Forum | Review | PDF | Favorites |
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