title: Thermodynamic bound on the phase-conjugate correction of optical distortions.
abstract: We show that there is a limit to the maximum efficiency achievable for correcting optical distortion (beam healing) using phase conjugation. This limit is quantum thermodynamic and stems from the impossibility of reducing the beam entropy by a lossless retrace of the phase aberrator.
authors.forename: Y B
authors.initials: YB
authors.lastname: Band
authors.forename: D F
authors.initials: DF
authors.lastname: Heller
authors.forename: O
authors.initials: O
authors.lastname: Kafri