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Download PDF by David Z. Albert (auth.), Heinz-Peter Breuer, Francesco: Relativistic Quantum Measurement and Decoherence: Lectures

By David Z. Albert (auth.), Heinz-Peter Breuer, Francesco Petruccione (eds.)

ISBN-10: 3540410619

ISBN-13: 9783540410614

ISBN-10: 3540453695

ISBN-13: 9783540453697

The improvement of a constant photograph for the strategies of decoherence and quantum dimension calls for a remedy that's suitable with the idea of relativity. This quantity studies many of the ways instructed to resolve or avert the bobbing up problems. ranging from an research of the extent of compatibility of the dimension challenge with the unique thought of relativity, the position of non-locality and entanglement are mentioned. the topic is usually addressed from the viewpoint of quantum optics and quantum info idea, in addition to at the foundation of workforce theoretic and algebraic tools. The emergence of decoherence in quantum electrodynamics is mentioned from an open platforms perspective.

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Extra resources for Relativistic Quantum Measurement and Decoherence: Lectures of a Workshop Held at the Istituto Italiano per gli Studi Filosofici Naples, April 9–10, 1999

Example text

This is, however, an artificial divergence which can be seen as follows. The decoherence function is defined ˙ in terms of the Fourier transform Q(ω) of q(t), see Eqs. (109) and (110). Evaluating Q(ω) as in Eq. (115) we assume that the velocity is zero prior to the initial time t = 0, that it suddenly jumps to the value given by Eq. (116), and that it again jumps to zero at time tf . This implies a force having the shape of two δ-function pulses around t = 0 and t = tf . Such a force acts over two infinitely small time intervals and leads to sharp edges in the classical path.

Braunstein the unwanted double pairs created in a single down-converter. Since the experimental setup considered here closely resembles the setup of the teleportation experiment, one might expect that the remedy given by Braunstein and Kimble will be effective here as well. However, this is not the case. The first approach was to make sure that in one of the outgoing modes (the state-preparation mode) there was only one photon present. In order to achieve this, a detector cascade was suggested which, upon a two-fold detector coincidence, would reveal a two-photon state.

1, 195; also in (1987) Speakable and unspeakable in quantum mechanics, Cambridge University Press, Cambridge. 3. Bennett C. , Wootters W. K. (1993): Phys. Rev. Lett. 70, 1895. 4. , Zeilinger A. (1997): Nature 390, 575. 5. , and Popescu S. (1998): Phys. Rev. Lett. 80, 1121. 6. , Sørensen J. , Braunstein S. , Fuchs C. , Kimble H. , Polzik E. S. (1998): Science 282, 706. 7. Kwiat P. , Zeilinger A. (1995): Phys. Rev. Lett. 75, 4337. 8. , Horne M. , Ekert A. K. (1993): Phys. Rev. Lett. 71, 4287. 9. Paviˇci´c M.

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Relativistic Quantum Measurement and Decoherence: Lectures of a Workshop Held at the Istituto Italiano per gli Studi Filosofici Naples, April 9–10, 1999 by David Z. Albert (auth.), Heinz-Peter Breuer, Francesco Petruccione (eds.)


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