Quantum Hall effect: the fundamentals

• Autorzy: Wysokiński K. I.

Warianty tytułu

PL

Kwantowe zjawisko Halla: podstawy

• Języki publikacji: EN

Abstrakty

EN

The basic understanding of the physics behind and the reasons for very high precision of the resistivity ρxy quantisation in integer quantum Hall effect (IQHE) and the application of the effect in metrology to define a quantum resistance standard will be briefly discussed. We also mention some recent proposals concerning the application of the quantum Hall device as an efficient qubit for future quantum computers and end up with few remarks about the contribution of single electron devices to the realisation of standards and quantum metrology which seeks the ways to beat the accuracy of classic measurements.

PL

W pracy przedstawiono podstawy zjawiska i fizyczne powody pozwalające na precyzyjny pomiar oporności ρxy w warunkach całkowitego kwantowego zjawiska Halla. Omówiono zastosowanie zjawiska w metrologii jako wzorca oporności elektrycznej oraz propozycje zastosowania kwantowego zjawiskaHall do budowy qubitu - podstawowego elementu przyszłych komputerów kwantowych. Na zakończenie wykładu przedstawię kilka zagadnień związanych z zastosowaniem urządzeń jednoelektronowych w metrologii i tzw. metrologią kwantową, która w wykorzystaniu kwantowych praw szuka metod pomiaru z precyzją większą niż 1/√N.

Słowa kluczowe

EN

quantum Hall effect; resistance standard; quantum metrology; precision measurements

PL

kwantowe zjawisko Halla; wzorzec oporności elektrycznej; metrologia kwantowa; precyzyjne pomiary

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2006
• Tom: Vol. 13, nr 2
• Strony: 113--124
• Opis fizyczny: Bibliogr. 18 poz., rys., wykr.

Twórcy

autor

Wysokiński K. I.

• M. Curie-Sklodowska University, Institute of Physics, 20-031 Lublin, Poland,

Bibliografia

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