dorsal/arxiv
View SchemaThermodynamic cost of reversible computing
| Authors | Lev B. Levitin, Tommaso Toffoli |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0701237 |
| URL | https://arxiv.org/abs/quant-ph/0701237 |
| DOI | 10.1103/PhysRevLett.99.110502 |
Abstract
Since reversible computing requires preservation of all information throughout the entire computational process, this implies that all errors that appear as a result of the interaction of the information-carrying system with uncontrolled degrees of freedom must be corrected. But this can only be done at the expense of an increase in the entropy of the environment corresponding to the dissipation, in the form of heat, of the ``noisy'' part of the system's energy. This paper gives an expression of that energy in terms of the effective noise temperature, and analyzes the relationship between the energy dissipation rate and the rate of computation. Finally, a generalized Clausius principle based on the concept of effective temperature is presented.
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"abstract": "Since reversible computing requires preservation of all information\nthroughout the entire computational process, this implies that all errors that\nappear as a result of the interaction of the information-carrying system with\nuncontrolled degrees of freedom must be corrected. But this can only be done at\nthe expense of an increase in the entropy of the environment corresponding to\nthe dissipation, in the form of heat, of the ``noisy\u0027\u0027 part of the system\u0027s\nenergy.\n This paper gives an expression of that energy in terms of the effective noise\ntemperature, and analyzes the relationship between the energy dissipation rate\nand the rate of computation. Finally, a generalized Clausius principle based on\nthe concept of effective temperature is presented.",
"arxiv_id": "quant-ph/0701237",
"authors": [
"Lev B. Levitin",
"Tommaso Toffoli"
],
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"quant-ph"
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"doi": "10.1103/PhysRevLett.99.110502",
"title": "Thermodynamic cost of reversible computing",
"url": "https://arxiv.org/abs/quant-ph/0701237"
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