Effect of an external field on decoherence
نویسندگان
چکیده
منابع مشابه
Effect of an external field on decoherence: Part II
A previous paper analysed the experimental results of Myatt et al. [Nature, 403, 269 (2000)] on the decoherence of superposition states of Be ions confined in a harmonic potential by a linear Paul trap and subject to a random external electric field. Based on a rigorous derivation in the absence of an external forcewhich had previously been obtained, a heuristic approach to the problem was pres...
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Kondo Resonance Decoherence by an External Potential
The Kondo problem, for a quantum dot (QD), subjected to an external bias, is analyzed in the limit of infinite Coulomb repulsion by using a consistent equations of motion method based on a slave-boson Hamiltonian. Utilizing a strict perturbative solution in the leads-dot coupling, T , up to T 4 and T 6 orders, we calculate the QD spectral density and conductance, as well as the decoherent rate ...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 2003
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.67.062107