Results 11  20
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17,576
Dinstantons in noncritical open string theory
, 1997
"... We show that the strength of the leading nonperturbative effects in noncritical string theory is of the order e−O(1/βst). We show how this restricts the space of consistent theories. We also identify noncritical one dimensional Dinstantons as dynamical objects which exchange closed string states ..."
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Cited by 2 (0 self)
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We show that the strength of the leading nonperturbative effects in noncritical string theory is of the order e−O(1/βst). We show how this restricts the space of consistent theories. We also identify noncritical one dimensional Dinstantons as dynamical objects which exchange closed string
Quantization of NonCritical Bosonic Open String Theory
, 2004
"... The theory of relativistic strings is considered in frames of Hamiltonian formalism and Dirac’s quantization procedure. A special gauge fixing condition is formulated, related with the world sheet of the string in Lorentzinvariant way. As a result, a new set of Lorentzinvariant canonical variables ..."
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variables is constructed, in which a consistent quantization of bosonic open string theory could be done in Minkowski spacetime of dimension d = 4. The obtained quantum theory possesses spinmass spectrum with Reggelike behavior. PACS 11.25.Pm: noncritical string theory 1
A NonCritical String Approach to Black Holes, Time and Quantum Dynamics
, 1994
"... We review our approach to time and quantum dynamics based on noncritical string theory, developing its relationship to previous work on nonequilibrium quantum statistical mechanics and the microscopic arrow of time. We exhibit specific nonfactorizing contributions to the /S matrix associated with ..."
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We review our approach to time and quantum dynamics based on noncritical string theory, developing its relationship to previous work on nonequilibrium quantum statistical mechanics and the microscopic arrow of time. We exhibit specific nonfactorizing contributions to the /S matrix associated
Noncritical superstrings from . . .
, 2005
"... We study largeN doublescaling limits of U(N) gauge theories in four dimensions. We focus on theories in a partially confining phase where an abelian subgroup ˆ G of the gauge group remains unconfined. Doublescaling is defined near critical points in the parameter/moduli space where states charged ..."
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charged under ˆ G become massless. In specific cases, we present evidence that the doublescaled theory is dual to a noncritical superstring background. Models studied include the βdeformation of N = 4 SUSY YangMills which leads to a noncritical string theory with sixteen supercharges. We also study N
A NonCritical String (Liouville) Approach to Brain Microtubules: State Vector Reduction, Memory Coding and Capacity
, 1995
"... Microtubule (MT) networks, subneural paracrystalline cytosceletal structures, seem to play a fundamental role in the neurons. We cast here the complicated MT dynamics in the form of a 1 + 1dimensional noncritical string theory, thus enabling us to provide a consistent quantum treatment of MTs, inc ..."
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Microtubule (MT) networks, subneural paracrystalline cytosceletal structures, seem to play a fundamental role in the neurons. We cast here the complicated MT dynamics in the form of a 1 + 1dimensional noncritical string theory, thus enabling us to provide a consistent quantum treatment of MTs
PUPT–1277 Some Properties of (Non) Critical Strings
, 1991
"... We review some recent developments in string theory, emphasizing the importance of vacuum instabilities, their relation to the density of states, and the role of spacetime fermions in noncritical string theory. We also discuss the classical dynamics of two dimensional string theory. ..."
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Cited by 2 (0 self)
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We review some recent developments in string theory, emphasizing the importance of vacuum instabilities, their relation to the density of states, and the role of spacetime fermions in noncritical string theory. We also discuss the classical dynamics of two dimensional string theory.
On NonCritical Superstring/Black Hole Transition
, 2005
"... An interesting case of string/black hole transition occurs in twodimensional noncritical string theory dressed with a compact CFT. In these models the high energy densities of states of perturbative strings and black holes have the same leading behavior when the Hawking temperature of the black ho ..."
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An interesting case of string/black hole transition occurs in twodimensional noncritical string theory dressed with a compact CFT. In these models the high energy densities of states of perturbative strings and black holes have the same leading behavior when the Hawking temperature of the black
Noncritical open strings beyond the semiclassical approximation
, 1997
"... We studied the lowest order quantum corrections to the macroscopic wave functions Γ(A,ℓ) of noncritical string theory using the semiclassical expansion of Liouville theory. By carefully taking the perimeter constraint into account we obtained a new type of boundary condition for the Liouville fiel ..."
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We studied the lowest order quantum corrections to the macroscopic wave functions Γ(A,ℓ) of noncritical string theory using the semiclassical expansion of Liouville theory. By carefully taking the perimeter constraint into account we obtained a new type of boundary condition for the Liouville
UCLA/96/TEP/27 Non–Critical Strings At High Energy
, 1996
"... We consider scattering amplitudes in noncritical string theory of N external states in the limit where the energy of all external states is large compared to the string tension. We argue that the amplitudes are naturally complex analytic in the matter central charge c and we propose to define the a ..."
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We consider scattering amplitudes in noncritical string theory of N external states in the limit where the energy of all external states is large compared to the string tension. We argue that the amplitudes are naturally complex analytic in the matter central charge c and we propose to define
String theory and noncommutative geometry
 JHEP
, 1999
"... We extend earlier ideas about the appearance of noncommutative geometry in string theory with a nonzero Bfield. We identify a limit in which the entire string dynamics is described by a minimally coupled (supersymmetric) gauge theory on a noncommutative space, and discuss the corrections away from ..."
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Cited by 794 (8 self)
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We extend earlier ideas about the appearance of noncommutative geometry in string theory with a nonzero Bfield. We identify a limit in which the entire string dynamics is described by a minimally coupled (supersymmetric) gauge theory on a noncommutative space, and discuss the corrections away from
Results 11  20
of
17,576