8.321 Quantum Theory I, Fall 2002 by Taylor, Washington

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8.851 Strong Interactions, Spring 2003 by Stewart, Iain

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Nonlinear wave effects at the non-reflecting beach by I. Didenkulova, E. Pelinovsky

“…Nonlinear corrections for both waves propagating shoreward and seaward demonstrate the oscillatory character, caused by interference of the incident and reflected waves in the second-order perturbation theory, while there is no reflection in the linear approximation (first-order perturbation theory). …”
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Teleparallel bigravity by Daniel Blixt, Manuel Hohmann, Tomi Koivisto, Luca Marzola

“…However, it is shown through perturbation theory that the simplest model is not viable. …”
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Anti-BRST in the Causal Approach by Dan-Radu Grigore

“…Unfortunately, the result is negative: if we have BRST invariance up to the second order of perturbation theory, we also have anti-BRST invariance up to the same order. …”
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A microscopic theory of the alpha-nucleus optical potential by Bonaccorso, A, Bonaccorso, Angela

“…</p><p>In order to test the validity of perturbation theory the ground state to ground state transition amplitude is also calculated by solving a set of coupled channel equations. …”

Lectures on quantum mechanics / by Das, Ashok, 1953- 445443

“…WKB approximation -- 12. Stationary perturbation theory -- 13. Time dependent perturbation theory -- 14. …”

Local moment phases in quantum impurity problems by Tucker, A

“…</p> <p>Conventional perturbation theory about the non-interacting limit does not hold in the non-Fermi liquid LM phase. …”

Geometry and entanglement in AdS/CFT and beyond by Chen, Chang-Han

“…On the field theory we side, we discuss perturbation theory with irrelevant deformations; on the gravity side, we study cutoff AdS and D3 brane geometry. …”
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Perturbative static quark potential in Maximal Abelian gauge by Matthias Berwein, Yukinari Sumino

“…Keywords: QCD, Static quark potential, Maximal Abelian gauge, Perturbation theory, Renormalization…”
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A perturbative analysis of modulated amplitude waves in Bose-Einstein condensates. by Porter, M, Cvitanović, P

“…We also explore the band structure of Bose-Einstein condensates in detail using Hamiltonian perturbation theory and supporting numerical simulations.…”

Modulated amplitude waves in Bose-Einstein condensates. by Porter, M, Cvitanović, P

“…We explore BEC band structure in detail using Hamiltonian perturbation theory and supporting numerical simulations.…”

THE CALCULATION OF THE GROUND-STATE ENERGY OF WEAKLY BOUND VANDERWAALS TRIMERS USING THE METHOD OF HYPERSPHERICAL HARMONICS .2. NON-ADIABATIC CORRECTIONS by Frey, J, Howard, B

“…Non-adiabatic effects are included by Ryleigh-Schrödinger perturbation theory. A new accurate method based on Brillouin-Wigner perturbation theory is also presented. © 1985.…”

Charm in deep-inelastic scattering by Ball, RD, Bonvini, M, Rottoli, L

“…We show that when there is no intrinsic charm, FONLL is equivalent to S-ACOT to any order in perturbation theory, while when an intrinsic charm component is included FONLL is identical to ACOT, again to all orders in perturbation theory. …”

Charm in Deep-Inelastic Scattering by Ball, R, Bonvini, M, Rottoli, L

“…We show that when there is no intrinsic charm, FONLL is equivalent to S-ACOT to any order in perturbation theory, while when an intrinsic charm component is included FONLL is identical to ACOT, again to all orders in perturbation theory. …”

A scattering amplitude for massive particles in AdS by Abhijit Gadde, Trakshu Sharma

“…We give Feynman-like rules to compute the AdS S-matrix in 1/R perturbation theory. Moreover, we relate it to the Mellin space representation of the conformal correlators in 1/R perturbation theory.…”
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Factorization of covariant Feynman graphs for the effective action by Gero von Gersdorff

“…Our results can also be useful for standard (non-covariant) perturbation theory.…”
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Spectral Problems for Quasinormal Modes of Black Holes by Yasuyuki Hatsuda, Masashi Kimura

“…This is an unconventional review article on spectral problems in black hole perturbation theory. Our purpose is to explain how to apply various known techniques in quantum mechanics to such spectral problems. …”
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THE BREAKDOWN OF WEAK-LOCALIZATION THEORY IN DISORDERED CONDUCTORS WITH MAGNETIC OR SPIN ORBIT SCATTERING by Chalker, J, Nahm, I

“…In each case, the corrections at second order in perturbation theory are much larger for finite wavevector than expected from previous results at zero wavevector. …”

Infrared problems in gauge theories by Garcia Alvarez-Coque, A, Garcia Alvarez-Coque, Arturo

“…</p> <p>In Chapter 2, the singularities arising in a purely massless process (Compton scattering in massless QED) are studied in perturbation theory. The IR and mass singularities from soft and hard bremsstrahlung are computed, and the cancellation implied by the Kinoshitaandndash;Leeandndash;Nauenberg theorem is verified. …”