Browsing Research and Publications - Department of Physics & Astronomy by Subject "Quantum field theory"

Browsing Research and Publications - Department of Physics & Astronomy by Subject "Quantum field theory"

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  • Gupta, K. S.; Stern, Allen (Elsevier, 1995-05-22)
    A class of two dimensional conformal field theories is known to correspond to three dimensional Chem-Simons theory. Here we claim that there is an analogous class of four dimensional field theories corresponding to five ...
  • Pinzul, A.; Stern, Allen (Elsevier, 2004-01-05)
    We investigate the static solutions of Callan and Maldecena and Gibbons to lowest order Dirac–Born–Infeld theory. Among them are charged wormhole solutions connecting branes to anti-branes. It is seen that there are no ...
  • Pinzul, A.; Stern, Allen (Elsevier, 2001-07-12)
    We construct a Dirac operator on the quantum sphere S2q which is covariant under the action of SUq(2), compatible with a chirality operator, has the correct commutative limit and also a familiar fuzzy sphere limit. In the ...
  • Chaney, A.; Stern, Allen (American Physical Society, 2017-02)
    Four-dimensional manifolds with changing signature are obtained by taking the large N limit of fuzzy CP2 solutions to a Lorentzian matrix model. The regions of Lorentzian signature give toy models of closed universes which ...
  • Balachandran, A. P.; Borchardt, S.; Stern, A. (American Physical Society, 1978-06-15)
    A new Lagrangian L is proposed for the description of a particle with a non-Abelian charge in interaction with a Yang-Mills field. The canonical quantization of L is discussed. At the quantum level L leads to both irreducible ...
  • Chaney, A.; Lu, Lei; Stern, Allen (American Physical Society, 2016-03)
    We perform a systematic search for rotationally invariant cosmological solutions to toy matrix models. These models correspond to the bosonic sector of Lorentzian Ishibashi, Kawai, Kitazawa and Tsuchiya (IKKT)-type matrix ...
  • Lu, Lei; Stern, Allen (Elsevier, 2012-07-01)
    We examine Hamiltonian formalism on Euclidean Snyder space. The latter corresponds to a lattice in the quantum theory. For any given dynamical system, it may not be possible to identify time with a real number parametrizing ...
  • Skagerstam, B. -S.; Stern, Allen (American Physical Society, 1982-03-15)
    In a previous work the dynamics of relativistic extended objects (i.e., strings, shells, etc.) coupled to Abelian or non-Abelian gauge fields was developed. The extended objects possessed an electriclike current which was ...
  • Okada, Nobuchika (2005-03-09)
    The structure of Yukawa coupling matrices is investigated in type IIA T⁶/(Z_2 × Z_2) orientifold models with intersecting D-branes. Yukawa coupling matrices are difficult to be made realistic in conventional models in which ...

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