QUANTUM MEASUREMENTS, INFORMATION AND ENTROPY PRODUCTION
نویسندگان
چکیده
منابع مشابه
Quantum Measurements, Information and Entropy Production
Thermodynamics has withstood the onslaught of the two revolutions in physical theory that have occurred during this century; i.e. relativity and quantum mechanics. Yet the microscopic basis of of thermodynamic laws remains unclear. What appears to be time reversal symmetry on the microscopic scale turns into time reversal asymmetry on the macroscopic scale. Our entire intuition concerning what ...
متن کاملEntropy and information gain in quantum continual measurements
The theory of measurements continuous in time in quantum mechanics (quantum continual measurements) has been formulated by using the notions of instrument, positive operator valued (POV) measure, etc. [1, 2], by using quantum stochastic differential equations [3, 4] and by using classical stochastic differential equations (SDE’s) for vectors in Hilbert spaces or for trace-class operators [5, 6,...
متن کاملQuantum Information and Entropy
Thermodynamic entropy is not an entirely satisfactory measure of information of a quantum state. This entropy for an unknown pure state is zero, although repeated measurements on copies of such a pure state do communicate information. In view of this, we propose a new measure for the informational entropy of a quantum state that includes information in the pure states and the thermodynamic entr...
متن کاملQuantum Measurement and Entropy Production
We study the time evolution of a quantum system without classical counterpart, undergoing a process of entropy increase due to the environment influence. We show that if the environment-induced decoherence is interpreted in terms of wave-function collapses, a symbolic sequence can be generated. We prove that the Kolmogorov-Sinai entropy of this sequence coincides with rate of von Neumann entrop...
متن کاملNonequilibrium quantum impurities: from entropy production to information theory.
Nonequilibrium steady-state currents, unlike their equilibrium counterparts, continuously dissipate energy into their physical surroundings leading to entropy production and time-reversal symmetry breaking. This Letter discusses these issues in the context of quantum impurity models. We use simple thermodynamic arguments to define the rate of entropy production sigma and show that sigma has a s...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Journal of Modern Physics B
سال: 1999
ISSN: 0217-9792,1793-6578
DOI: 10.1142/s0217979299003076