Showing papers by "Andy Wilkins published in 1998"
TL;DR: In this paper, the effective action for scattering of three well-separated extremal brane solutions, in 11d supergravity, with zero p − transfer and small transverse velocities, was computed.
10 citations
TL;DR: In this article, the authors examined the effect of the Chern-Simons term in four-dimensional gauge theory at high and low temperature and demonstrated that the existence of such a term may be rather subtle.
Abstract: We examine the claim that the effective action of four-dimensional $\mathrm{SU}{(2)}_{L}$ gauge theory at high and low temperature contains a three-dimensional Chern-Simons term which has the chemical potential for baryon number as its coefficent. The four-dimensional theory has a two-dimensional analogue in which exact calculations can be performed. These calculations demonstrate that the existence of the Chern-Simons term in four dimensions may be rather subtle.
4 citations
TL;DR: The first massive level of closed bosonic string theory is studied in this article, where a two-parameter solution to the equation of motion and constraints is found in two dimensions with a flat linear-dilaton background.
Abstract: The first massive level of closed bosonic string theory is studied. Free-field equations are derived by imposing Weyl invariance on the world sheet. A two-parameter solution to the equation of motion and constraints is found in two dimensions with a flat linear-dilaton background. One-to-one tachyon scattering is studied in this background. The results support Dhar, Mandal and Wadia's proposal that 2D critical string theory corresponds to the c=1 matrix model in which both sides of the Fermi sea are excited.
2 citations
TL;DR: The first massive level of closed bosonic string theory is studied in this article, where a two-parameter solution to the equation of motion and constraints is found in two dimensions with a flat linear-dilaton background.
Abstract: The first massive level of closed bosonic string theory is studied. Free-field equations are derived by imposing Weyl invariance on the worldsheet. A two-parameter solution to the equation of motion and constraints is found in two dimensions with a flat linear-dilaton background. One-to-one tachyon scattering is studied in this background. The results support Dhar, Mandal and Wadia's proposal that 2-D critical string theory corresponds to the c = 1 matrix model in which both sides of the Fermi sea are excited.
1 citations
TL;DR: In this paper, the effective action for scattering of three well-separated extremal brane solutions, in 11d supergravity, with zero p_ transfer and small transverse velocities, was computed.
Abstract: We compute the effective action for scattering of three well-separated extremal brane solutions, in 11d supergravity, with zero p_ transfer and small transverse velocities. Using an interpretation of the conjecture of Maldacena, following Hyun, this can be viewed as the large N limit of the Matrix theory description of three supergraviton scattering at leading order. The result is consistent with the perturbative supergravity calculation.