One-loop effective action in the case of noncanonical gauge kinetic energy

Gaillard, Mary K.; Jain, Vidyut

doi:10.1103/physrevd.46.1786

Cited by 8 publications

(19 citation statements)

References 19 publications

(29 reference statements)

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“…In References [4], [5] we identified the divergent one-loop contributions to the effective bose Lagrangian, with a flat space-time background metric, in a general N = 1 supergravity theory, with specialization to the no-scale form suggested by superstrings. Here we present the full results for a general supergravity theory coupled to chiral matter with an arbitrary background space-time metric and arbitrary background scalar fields.…”

Section: Introductionmentioning

confidence: 99%

Supergravity coupled to chiral matter at one loop

1994

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We extend earlier calculations of the one-loop contributions to the effective bose Lagrangian in supergravity coupled to chiral matter. We evaluate all logarithmically divergent contributions for arbitrary background scalar fields and space-time metric. We show that, with a judicious choice of gauge fixing and of the definition of the action expansion, much of the result can be absorbed into a redefinition of the metric and a renormalization of the Kähler potential. Most of the remaining terms depend on the curvature of the Kähler metric. Further simplification occurs in models obtained from superstrings in which the Kähler Riemann tensor is covariantly constant.

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Section: Introductionmentioning

confidence: 99%

Supergravity coupled to chiral matter at one loop

1994

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“…The results were subsequently extended to coupling to supergravity[40] with consistent regularization and renormalization prescriptions[41].…”

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confidence: 99%

Classical and quantum aspects of BPS black holes in N = 2, D = 4 heterotic string compactifications

Rey

1997

Nuclear Physics B

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We study classical and quantum aspects of D = 4, N = 2 BPS black holes for T 2 compactification of D = 6, N = 1 heterotic string vacua. We extend dynamical relaxation phenomena of moduli fields to background consisting of a BPS soliton or a black hole and provide a simpler but more general derivation of the Ferrara-Kallosh's extremized black hole mass and entropy. We study quantum effects to the the BPS black hole mass spectra and to their dynamical relaxation. We show that, despite non-renormalizability of string effective supergravity, quantum effect modifies BPS mass spectra only through coupling constant and moduli field renormalizations. Based on target-space duality, we establish a perturbative non-renormalization theorem and obtain exact BPS black hole mass and entropy in terms of renormalized string loop-counting parameter and renormalized moduli fields. We show that similar conclusion holds, in the large T 2 limit, for leading non-perturbative correction. We finally discuss implications to type-I and type-IIA Calabi-Yau black holes.

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“…As in [41] we rescale the quantum gauge fields: A, = &dp. Then To obtain the ghostino determinant we use the supersymmetry transformations [42] (B.14)…”

Section: Boson Matrix Elementsmentioning

confidence: 99%

Topics in N = 1 supergravity in four dimensions and superstring effective field theories beyond tree-level

Saririan

1997

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In this thesis, we present some works in the direction of studying quantum effects in locally supersymmetric effective field theories that appear in the low energy limit of suprestring theory. After reviewing the Kahler covariant formulation of supergravity, we show the calculation of the divergent one-loop contribution to the effective boson Lagrangian for supergravity, including the Yang-Mills sector and the helicity-odd operators that arise from integration over fermion fields. The only restriction is on the Yang-Mills kinetic energy normalization function, which is taken diagonal in gauge indices, as in AcknowledgementsMy deepest gratitude goes to my advisor, Professor Mary K. Gaillard, for all the inspiration: support, friendship, and help that she has provided throughout my graduate research at Berkeley. I have benefitted immensely from her keen approach and sense of direction in physics; she has patiently guided me through a difficult but intriguing area of physics, namely superstring phenomenology, and has opened my eyes on lengthy and intricate calculations. In one sentence, her deep intellect and warm personality has made being her student a pleasure.

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One-loop effective action in the case of noncanonical gauge kinetic energy

Abstract: We calculate the one-loop effective action for ca four dimensional bosonic model when the gauge kinetic energy and F-F-dual terms are coupled to the scalar :fields~ The simple form of the coupling we choose is particularly relavent to string inspired supergravity models.

Cited by 8 publications

References 19 publications

Supergravity coupled to chiral matter at one loop

Supergravity coupled to chiral matter at one loop

Classical and quantum aspects of BPS black holes in N = 2, D = 4 heterotic string compactifications

Topics in N = 1 supergravity in four dimensions and superstring effective field theories beyond tree-level

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