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  Classical and Quantum Branes in c=1 String Theory and Quantum Hall Effect

Boyarsky, A., Kulik, B., & Ruchayskiy, O. (2003). Classical and Quantum Branes in c=1 String Theory and Quantum Hall Effect.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-5349-5 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-534A-3
Genre: Other

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60196.pdf (Preprint), 447KB
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 Creators:
Boyarsky, Alexey1, Author
Kulik, Bogdan, Author
Ruchayskiy, Oleg, Author
Affiliations:
1Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, escidoc:24014              

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 Abstract: Interpretation of D1 and D0-branes in 1+1 string theory as classical and quantum eigen-values in dual c=1 Matrix Quantum Mechanics (MQM) was recently suggested. MQM is known to be equivalent to a system of N free fermions (eigen-values). By considering quantum mechanics of fermions in the presence of classical eigen-value we are able to calculate explicitly the perturbation of the shape of Fermi-sea due to the interaction with the brane. We see that the shape of the Fermi-sea depending on the position of the classical eigen-value can exhibit critical behavior, such as development of cusp. On quantum level we build explicitly the operator describing quantum eigen-value. This is a vertex operator in bosonic CFT. Its expectation value between vacuum and Dirichlet boundary state is equal to the correct wave-function of the fermion. This supports the conjecture that quantum eigen-value corresponds to D0-brane. We also show that c=1 MQM can be obtained as analytical continuation of the system of 2d electrons in magnetic field which is studied in Quantum Hall Effect.

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Language(s): eng - English
 Dates: 2003
 Publication Status: Published in print
 Pages: -
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 Rev. Method: -
 Identifiers: eDoc: 60196
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