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Cited by 309

The DOI matches its Crossref record; 12 of the 12 references it cites were found in a registry or an index.

Quantum theory of a free particle interacting with a linearly dissipative environment

Hakim, Vincent, Ambegaokar, Vinay·1985·Physical Review A

Abstract

The quantum-mechanical motion of a free particle coupled to a linearly dissipative environment is analyzed in the Hamiltonian formalism. The total Hamiltonian is diagonalized and its eigenstates displayed. These results are used to discuss the role of initial conditions on the subsequent motion. A widely used initial condition---heat bath uncoupled from particle---is compared with another one in which the initial off-diagonal coherence of the reduced density matrix is comparable to that in the state of thermal equilibrium of the coupled system. Different transient behaviors, on time scales longer than the inverse cutoff frequency of the bath are found. The mean-square momentum of the particle in the steady state is found to depend on this highest bath frequency. An analysis of the correlated states of particle and heat reservoir shows that the latter behaves in some sense like a position-measuring apparatus.

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Metadata

Authors
Hakim, V., & Ambegaokar, V.
Venue
Physical Review A
Published
1985-07-01
Volume
32
Issue
1
Pages
423-434
ISSN
0556-2791 (ISSN-L)
OpenAlex
W2092403627
Cited by
309
References
12
FWCI
5.72
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Quantum theory of a free particle interacting with a linearly dissipative environment. https://app.cochat.ai/papers/10.1103/physreva.32.423
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Hakim, V., & Ambegaokar, V. (1985). Quantum theory of a free particle interacting with a linearly dissipative environment. Physical Review A. https://doi.org/10.1103/physreva.32.423

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