The theory of heating of the quantum ground state of trapped ions

Details The theory of heating of the quantum ground state of trapped ions The theory of heating of the quantum ground state of trapped ions

1998-04-20

arxiv.org/abs/quant-ph/9804048v1

Phys.Rev.Lett. 81 (1998) 317-320

Physics

Quantum Physics

9 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.81.317

Using a displacement operator formalism, I analyse the depopulation of the vibrational ground state of trapped ions. Two heating times, one characterizing short time behaviour, the other long time behaviour are found. The short time behaviour is analyzed both for single and multiple ions, and a formula for the relative heating rates of different modes is derived. The possibility of correction of heating via the quantum Zeno effect, and the exploitation of the suppression of heating of higher modes to reduce errors in quantum computation is considered.

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