Wyniki wyszukiwania dla: QUANTUM

• Dynamical description of quantum computing: generic nonlocality of quantumnoise

  Publikacja

  • R. Kalicki
  • M. Horodecki
  • P. Horodecki
  • R. Horodecki

  - PHYSICAL REVIEW A - Rok 2002

  We develop a dynamical non-Markovian description of quantum computing in the weak-coupling limit, in the lowest-order approximation. We show that the long-range memory of the quantum reservoir (such as the 1/t4 one exhibited by electromagnetic vacuum) produces a strong interrelation between the structure of noise and the quantum algorithm, implying nonlocal attacks of noise. This shows that the implicit assumption of quantum error...

  Pełny tekst do pobrania w portalu

• Quantum Matter

  Czasopisma

  ISSN: 2164-7615

• Quantum Topology

  Czasopisma

  ISSN: 1663-487X , eISSN: 1664-073X

• QUANTUM ELECTRONICS

  Czasopisma

  ISSN: 1063-7818 , eISSN: 1468-4799

• PRX Quantum

  Czasopisma

  eISSN: 2691-3399

• Quantum Reports

  Czasopisma

  eISSN: 2624-960X

• Blurred quantum Darwinism across quantum reference frames

  Publikacja

  • T. P. Le
  • P. A. Mironowicz
  • P. Horodecki

  - PHYSICAL REVIEW A - Rok 2020

  Quantum Darwinism describes objectivity of quantum systems via their correlations with their environment--information that hypothetical observers can recover by measuring the environments. However, observations are done with respect to a frame of reference. Here, we take the formalism of [Giacomini, Castro-Ruiz, & Brukner. Nat Commun 10, 494 (2019)], and consider the repercussions on objectivity when changing quantum reference...

  Pełny tekst do pobrania w portalu

• Anomalous decay of quantum correlations of quantum-dot qubits

  Publikacja

  • K. Roszak
  • P. Mazurek
  • P. Horodecki

  - PHYSICAL REVIEW A - Rok 2013

  We study the evolution of quantum correlations, quantified by the geometric discord, of two excitonic quantum-dot qubits under the influence of the phonon environment. We show that the decay of these correlations differs substantially from the decay of entanglement. Instead of displaying sudden-death-type behavior, the geometric discord shows a tendency to undergo transitions between different types of decay, is sensitive to nonlocal...

  Pełny tekst do pobrania w portalu

• Quantum entanglement

  Publikacja

  • R. Horodecki
  • P. Horodecki
  • M. Horodecki
  • K. Horodecki

  - REVIEWS OF MODERN PHYSICS - Rok 2009

  All our former experience with application of quantum theory seems to say that what is predicted by quantum formalism must occur in the laboratory. But the essence of quantum formalism-entanglement, recognized by Einstein, Podolsky, Rosen, and Schrödinger-waited over 70 years to enter laboratories as a new resource as real as energy. This holistic property of compound quantum systems, which involves nonclassical correlations between...

  Pełny tekst do pobrania w serwisie zewnętrznym

• Cartoon computation: Quantum-like algorithms without quantum mechanics

  Publikacja

  • D. Aerts
  • M. Czachor

  - Journal of Physics A-Mathematical and Theoretical - Rok 2007

  Zaproponowano formalizm prowadzący do algorytmów analogicznych do kwantowych, lecz wykorzystujący jedynie struktury geometryczne. Jako przykład sformułowano odpowiednik kwantowego algorytmu Deutscha-Jozsy.

  Pełny tekst do pobrania w portalu