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Formulation of Statistical Mechanics Based on Thermal Pure Quantum States

Formulation of Statistical Mechanics Based on Thermal Pure Quantum States

Hardcover

Series: Springer Theses

Technology & EngineeringPhysics

ISBN10: 9811015058
ISBN13: 9789811015052
Publisher: Springer Nature
Published: Oct 17 2017
Pages: 73
Weight: 0.67
Height: 0.25 Width: 6.14 Depth: 9.21
Language: English

This thesis introduces the concept of thermal pure quantum (TPQ) states, which are pure quantum states in equilibrium. The author establishes a new formulation of statistical mechanics based on the TPQ states. This formulation allows us to obtain not only mechanical variables but also thermodynamic variables such as entropy and free energy from a single TPQ state. Furthermore, the formulation provides a new physical description in which all fluctuations including thermally driven ones are uniquely identified to be quantum fluctuations.

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