Extracting work from a single thermal bath via quantum negentropy. Academic Article uri icon


  • Classical heat engines produce work by operating between a high temperature energy source and a low temperature entropy sink. The present quantum heat engine has no cooler reservoir acting as a sink of entropy but has instead an internal reservoir of negentropy which allows extraction of work from one thermal bath. The process is attended by constantly increasing entropy and does not violate the second law of thermodynamics.

published proceedings

  • Phys Rev Lett

altmetric score

  • 3

author list (cited authors)

  • Scully, M. O.

citation count

  • 139

complete list of authors

  • Scully, MO

publication date

  • November 2001