Geometric phase shift in quantum computation using superconducting nanocircuits: nonadiabatic effects

Details Geometric phase shift in quantum computation using superconducting nanocircuits: nonadiabatic effects Geometric phase shift in quantum computation using superconducting nanocircuits: nonadiabatic effects

2002-10-25

arxiv.org/abs/quant-ph/0210175v1

Phys. Rev. A 66, 042322 (2002)

Physics

Quantum Physics

5 pages; A slightly different version with PRA 66, 042322

Scientific paper

10.1103/PhysRevA.66.042322

The nonadiabatic geometric quantum computation may be achieved using coupled low-capacitance Josephson juctions. We show that the nonadiabtic effects as well as the adiabatic condition are very important for these systems. Moreover, we find that it may be hard to detect the adiabatic Berry's phase in this kind of superconducting nanocircuits; but the nonadiabatic phase may be measurable with current techniques. Our results may provide useful information for the implementation of geometric quantum computation.

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