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Cheating on complementarity and interference by translational - Internal entanglement

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F06%3A00002665" target="_blank" >RIV/61989592:15310/06:00002665 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Cheating on complementarity and interference by translational - Internal entanglement

  • Original language description

    We show that if internal and momentum states of an interfering particle are entangled, then by measuring its internal state we may infer both path (corpuscular) and phase (wavelike) information with practically any precision, without the complementarityconstraints of which-path detection. This holds also for multipath-multistate configurations, allowing large amounts of information to be stored in a single particle. We further show that highly complex particles (e.g., molecules or macroscopic bodies) subject to fields that couple (entangle) their internal and translational (momentum) states may undergo an irresversible randomization (diffusion), manifest by the disappearance of the interference pattern, as if they are subject to decoherence. Thus, translational-internal entanglement can give rise to anomalies in quantum wavepacket propagation. Author Keywords: quantum interferometry; nonlocality; quantum information

  • Czech name

    Podvádění komplementarity a interference pomocí translačně-vnitřního entanglementu

  • Czech description

    Ukazujeme, že pokud jsou vnitřní stupně volnosti a pohybové stupně volnosti interferující částice entanglované, pak pomocí měření vnitřního stavu můžeme získávat informaci jak o dráze částice, tak o její fázi - bez omezení daného běžnými relacemi komplementarity. Toto platí též pro mnohacestné a mnohastavové konfigurace, čímž můžeme využít částici k ukládání většího množství informace.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    BH - Optics, masers and lasers

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/GA202%2F05%2F0486" target="_blank" >GA202/05/0486: Entanglement preparation and quantum information processing in atomic systems</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2006

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Quantum Information Processing

  • ISSN

    1570-0755

  • e-ISSN

  • Volume of the periodical

    5

  • Issue of the periodical within the volume

    6

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    17

  • Pages from-to

    463-479

  • UT code for WoS article

  • EID of the result in the Scopus database