Decoherence of Schrodinger cat states in a Luttinger liquid
arXiv:cond-mat/0001452 · doi:10.1103/PhysRevB.62.10706
Abstract
Schrodinger cat states built from quantum superpositions of left or right Luttinger fermions located at different positions in a spinless Luttinger liquid are considered. Their decoherence rates are computed within the bosonization approach using as environments the quantum electromagnetic field or two or three dimensionnal acoustic phonon baths. Emphasis is put on the differences between the electromagnetic and acoustic environments.
22 pages revtex4, 7 figures in a separate PS file