1.
Nat Commun
; 9(1): 1291, 2018 03 29.
Article
in English
| MEDLINE
| ID: mdl-29599432
ABSTRACT
Information thermodynamics bridges information theory and statistical physics by connecting information content and entropy production through measurement and feedback control. Maxwell's demon is a hypothetical character that uses information about a system to reduce its entropy. Here we realize a Maxwell's demon acting on a superconducting quantum circuit. We implement quantum non-demolition projective measurement and feedback operation of a qubit and verify the generalized integral fluctuation theorem. We also evaluate the conversion efficiency from information gain to work in the feedback protocol. Our experiment constitutes a step toward experimental studies of quantum information thermodynamics in artificially made quantum machines.
2.
Phys Rev B Condens Matter
; 41(5): 3069-3073, 1990 Feb 15.
Article
in English
| MEDLINE
| ID: mdl-9994078