Radiation damping of a BPS monopole: An illustration of S duality

Lee

1998

Phys. Rev. D

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Based on a detailed analysis of nonlinear field equations of the SU(2) Yang-Mills-Higgs system, we obtain the effective field theory describing low-energy interaction of BPS dyons and massless particles (i.e., photons and Higgs particles). Our effective theory manifests electromagnetic duality and spontaneously broken scale symmetry, and reproduces the multimonopole moduli space dynamics of Manton in a suitable limit. Also given is a generalization of our approach to the case of BPS dyons in a gauge theory with an arbitrary gauge group that is maximally broken to U(1) k .

Section: Discussionmentioning

confidence: 95%

Dynamics of Bogomol’nyi-Prasad-Sommerfield dyons: Effective field theory approach

Lee

1998

Phys. Rev. D

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“…(A detailed discussions can be found in Ref. [14,15] where an accelerated dyon in SU(2)-Yang-Mills-Higgs theory is dealt with.) Let us now consider the motion of F/D-string due to more general asymptotic excitations.…”

Section: Response Of a Bps State To Fields On A Branementioning

confidence: 99%

Dynamics of BPS states in the Dirac-Born-Infeld theory

Lee

1999

Phys. Rev. D

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The Dirac-Born-Infeld action with transverse scalar fields is considered to study the dynamics of various BPS states. We first describe the characteristic properties of the so-called 1/2 and 1/4 BPS states on the D3 brane, which can be interpreted as F/D-strings ending on a D3-brane in Type IIB string theory picture. We then study the response of the BPS states to low energy excitations of massless fields on the brane, the scalar fields representing the shape fluctuation of the brane and U(1) gauge fields describing the open string excitations on the D-brane. This leads to an identification of interactions between BPS states including the static potentials and the kinetic interactions.

“…One again finds that, apart from the kinematical, Compton scattering correction, corrections of O(ω 2 /M 2 w ) arise from the classical finite-size of the magnetic monopole, set by the Compton wavelength of the W-boson, and radiation reactive force effects [33].…”

Section: Transmission Rate Across Open Stringmentioning

confidence: 99%

“…Because of these effects, in field theory treatment, the W-boson might be viewed roughly as a particle with an effective size set by the W-boson Compton wavelength. Heuristically, the effects may be understood as follows [33]. Low-energy dynamics of a single W-boson may be described by taking a nonrelativistic limit of the W-boson gauge field W µ : 19) in which charge-conjugate, anti-particle part is suppressed.…”

Section: Transmission Rate Across Open Stringmentioning

confidence: 99%

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Holographic view of causality and locality via branes in AdS/CFT correspondence

Rey

2000

Nuclear Physics B

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We study dynamical aspects of holographic correspondence between d = 5 anti-de Sitter supergravity and d = 4 super Yang-Mills theory. We probe causality and locality of ambient spacetime from super Yang-Mills theory by studying transmission of low-energy brane waves via an open string stretched between two D3-branes in Coulomb branch. By analyzing two relevant physical threshold scales, we find that causality and locality is encoded in the super Yang-Mills theory provided infinite tower of long supermultiplet operators are added. Massive W-boson and dual magnetic monopole behave more properly as extended, bilocal objects. We also study causal time-delay of low-energy excitation on heavy quark or meson and find an excellent agreement between anti-de Sitter supergravity and super Yang-Mills theory descriptions. We observe that strong 't Hooft coupling dynamics and holographic scale-size relation thereof play a crucial role to the agreement of dynamical processes.