142 citations · 602 across the 21 of their papers we have counts for
7 papers · 1 filter
Decoherence at zero temperature
G. W. Ford, R. F. O'Connell
Most discussions of decoherence in the literature consider the high-temperature regime but it is also known that, in the presence of dissipation, decoherence can occur even at zero…
Note on the derivative of the hyperbolic cotangent
G. W. Ford, R. F. O'Connell
In a letter to Nature (Ford G W and O'Connell R F 1996 Nature 380 113) we presented a formula for the derivative of the hyperbolic cotangent that differs from the standard one in t…
Wave Packet Spreading: Temperature and Squeezing Effects with Applications to Quantum Measurement and Decoherence
G. W. Ford, R. F. O'Connell
A localized free particle is represented by a wave packet and its motion is discussed in most quantum mechanics textbooks. Implicit in these discussions is the assumption of zero t…
Quantum measurement and decoherence
G. W. Ford, J. T. Lewis, R. F. O'Connell
Distribution functions defined in accord with the quantum theory of measurement are combined with results obtained from the quantum Langevin equation to discuss decoherence in quan…
Decoherence without dissipation
G. W. Ford, R. F. O'Connell
The prototypical Schrödinger cat state, i.e., an initial state corresponding to two widely separated Gaussian wave packets, is considered. The decoherence time is calculated solely…
Exact solution of the Hu-Paz-Zhang master equation
G. W. Ford, R. F. O'Connell
The Hu-Paz-Zhang equation is a master equation for an oscillator coupled to a linear passive bath. It is exact within the assumption that the oscillator and bath are initially unco…