TY - JOUR
T1 - Dynamics of the two-state system with ohmic dissipation
AU - Chakravarty, Sudip
AU - Leggett, Anthony J.
PY - 1984
Y1 - 1984
N2 - The authors study a symmetric two-state system with "bare" tunneling frequency 0, dimensionless Ohmic dissipation coefficient , and heat-bath cutoff c. Defining r0(0c)(1-) for <1 and r0 for >1, they find to lowest order in rc, kTc (a) for all kTr, incoherent relaxation at a rate (02c)(2)[()(+12)]×(kTc)2-1; (b) for T=0, 12<<1, incoherent relaxation at a rate r; and (c) for T=0, 0<<F12, damped oscillations with frequency r and Q factor 12cot[(2)(1-)] plus a power-law background.
AB - The authors study a symmetric two-state system with "bare" tunneling frequency 0, dimensionless Ohmic dissipation coefficient , and heat-bath cutoff c. Defining r0(0c)(1-) for <1 and r0 for >1, they find to lowest order in rc, kTc (a) for all kTr, incoherent relaxation at a rate (02c)(2)[()(+12)]×(kTc)2-1; (b) for T=0, 12<<1, incoherent relaxation at a rate r; and (c) for T=0, 0<<F12, damped oscillations with frequency r and Q factor 12cot[(2)(1-)] plus a power-law background.
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U2 - 10.1103/PhysRevLett.52.5
DO - 10.1103/PhysRevLett.52.5
M3 - Article
AN - SCOPUS:0002097104
SN - 0031-9007
VL - 52
SP - 5
EP - 8
JO - Physical review letters
JF - Physical review letters
IS - 1
ER -