Search results for: ERASURE

• Critical Remarks on Landauer’s principle of erasure– dissipation: Including notes on Maxwell demons and Szilard engines

  Publication

  • L. B. Kish
  • C. G. Granqvist
  • S. P. Khatri
  • J. Smulko

  - Year 2015

  We briefly address Landauer’s Principle and some related issues in thermal demons. We show that an error-free Turing computer works in the zero-entropy limit, which proves Landauer’s derivation incorrect. To have a physical logic gate, memory or information-engine, a few essential components necessary for the operation of these devices are often neglected, such as various aspects of control, damping and the fluctuation–dissipation...

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• Quantum mechanical which-way experiment with an internal degree of freedom

  Publication

  • K. Banaszek
  • P. Horodecki
  • M. Karpiński
  • C. Radzewicz

  - Nature Communications - Year 2013

  For a particle travelling through an interferometer, the trade-off between the available which-way information and the interference visibility provides a lucid manifestation of the quantum mechanical wave-particle duality. Here we analyse this relation for a particle possessing an internal degree of freedom such as spin. We quantify the trade-off with a general inequality that paints an unexpectedly intricate picture of wave-particle...

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