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Work statistics for quantum spin chains

Paper Authors:

Feng-Li Lin,

Ching-Yu Huang


Key Details

Average work done identifies quantum phase transitions

Jarzynski's equality benchmarks real-time evolution methods

Some ground states are active under cyclic processes

Thermal states are always passive due to second law

Activity inhibited by classical and quantum order

AI generated summary

Work statistics for quantum spin chains

This paper studies work statistics for quantum spin chains. It finds the average work done in sudden quenches can identify quantum phase transitions. It also benchmarks real-time evolution methods with Jarzynski's equality. Finally, it examines passivity of ground states, finding some can be active.

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