415 citations · 2.6k across the 142 of their papers we have counts for
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The Universal Floquet Modes of (Quasi)-Breathers and Oscillons
Jarah Evslin, Tomasz Romańczukiewicz, Katarzyna Slawińska +1
Just as linearized perturbations of time-independent configurations can be decomposed into normal modes, those of periodic systems can be decomposed into Floquet modes, which each…
An Extended Soliton's Zero Modes
Jarah Evslin, Hui Liu
Quantum field theory in the presence of localized solitons is more complicated than vacuum sector quantum field theory, largely as a result of the soliton's zero modes. In the pres…
The Domain Wall String's Anti-Stokes Scattering Cross Section
Hengyuan Guo, Jarah Evslin, Hui Liu
We consider anti-Stokes scattering, in which a perturbative meson scatters off of a domain wall string's shape mode excitation, de-exciting it. Previously the probability of this p…
Scheme Dependence of the One-Loop Domain Wall Tension
Jarah Evslin, Hui Liu
The one-loop tension of the domain wall in the 3+1 dimensional double-well model was derived long ago using dimensional regularization. The methods used can only be applied t…
Instanton Corrections to the MSTB Kink Mass
Jarah Evslin, Alberto García Martín-Caro, Andrzej Wereszczyński
The Montonen-Sarker-Trullinger-Bishop (MSTB) model enjoys two classically degenerate kink solutions in the same topological sector. We construct the instanton that interpolates bet…
The Domain Wall Soliton's Tension
Jarah Evslin, Hui Liu, Baiyang Zhang
We calculate the one-loop tension of the domain wall soliton in the double-well model. Our result agrees with previous results from Dashen, Hasslacher and Neveu (1974) in 1+1…
(Anti-)Stokes Scattering on the Domain Wall String
Hengyuan Guo, Hui Liu, Jarah Evslin
In a general (2+1)-dimensional scalar model, we consider the scattering of a single quantum of radiation off a domain wall string, which excites or de-excites the wall's internal s…
Constructing A Finite Tension Domain Wall in
Jarah Evslin, Hengyuan Guo, Hui Liu +1
We have recently claimed that the domain wall in the 3+1 dimensional double-well model can be constructed as a squeezed, coherent state and that at one loop it has a finite t…
A Finite Tension for the Domain Wall
Jarah Evslin, Hui Liu, Baiyang Zhang +1
In 1+1 dimensions, it is well known that the quantum states corresponding to solitons are well described by coherent states. In his 1975 Erice lectures, Coleman observed that this…
Normal Modes of the Small-Amplitude Oscillon
Jarah Evslin, Tomasz Romanczukiewicz, Katarzyna Slawinska +1
Consider a classical (1+1)-dimensional oscillon of small amplitude . To all orders in , the oscillon solution is exactly periodic. We study small perturbations of such period…
A (2+1)-Dimensional Domain Wall at One-Loop
Jarah Evslin, Kehinde Ogundipe, Baiyang Zhang +1
We consider the domain wall in the (2+1)-dimensional double well model, created by extending the kink in an additional infinite direction. Classically, the tension is $…
Perturbative Approach to Time-Dependent Quantum Solitons
Jarah Evslin, Kehinde Ogundipe
Recently we have introduced a lightweight, perturbative approach to quantum solitons. Thus far, our approach has been largely limited to configurations consisting of a single solit…
The Reflection Coefficient of a Reflectionless Kink
Jarah Evslin, Hui Liu
Classically, reflectionless kinks transmit all incident radiation. Recently, we have used an analyticity argument together with a solution of the Lippmann-Schwinger equation to wri…
Elastic Kink-Meson Scattering
Jarah Evslin, Hui Liu
In classical field theory, radiation does not reflect off of reflectionless kinks. In quantum field theory, radiation quanta, called mesons, can be reflected. We provide a general…
Quantum Oscillons May be Long-Lived
Jarah Evslin, Tomasz Romańczukiewicz, Andrzej Wereszczyński
Hertzberg has constructed a quantum oscillon that decays into pairs of relativistic mesons with a power much greater than the radiation from classical oscillon decay. This result i…
Asymptotic States for Kink-Meson Scattering
Jarah Evslin
The definition of a quantum state corresponding to a wave packet far from a global soliton is considered. We define an asymptotic quantum state corresponding to a localized wave pa…
(Anti-)Stokes Scattering on Kinks
Jarah Evslin, Hui Liu
At leading order, there are three inelastic scattering processes beginning with a quantum kink and a fundamental meson. Meson multiplication, in which the final state is a kink and…
Kinks Multiply Mesons
Jarah Evslin, Hui Liu, Baiyang Zhang
In a (1+1)-dimensional scalar quantum field theory, we calculate the leading-order probability of meson multiplication, which is the inelastic scattering process: kink + meson $\ri…
A Reduced Inner Product for Kink States
Jarah Evslin, Hui Liu
Solitons in classical field theories correspond to states in quantum field theories. If the spatial dimension is infinite, then momentum eigenstates are not normalizable. This lead…
Spontaneous Emission from Excited Quantum Kinks
Jarah Evslin, Alberto García Martín-Caro
Many kink solutions enjoy internal excitations, called shape modes. In some 1+1d scalar models, such as the double-well model, when a kink's shape mode is excited twice it ma…
Form Factors for Meson-Kink Scattering
Jarah Evslin
We calculate the leading quantum corrections to the meson form factors of nonrelativistic kinks, at momentum transfer much higher than the meson mass. We consider general scalar th…
Kink Form Factors
Jarah Evslin
We use a recently constructed linearized soliton sector perturbation theory to calculate the form factors relevant to the elastic scattering of ultrarelativistic mesons off of nonr…
Spectral Walls at One Loop
Jarah Evslin, Chris Halcrow, Tomasz Romanczukiewicz +1
A spectral wall is a surface in a moduli space of classically BPS solitons where an internal excitation crosses the continuum mass threshold. It has recently been shown that spectr…
Moving Kinks and Their Wave Packets
Jarah Evslin
Recently a linearized perturbation theory has been formulated for soliton sectors of quantum field theories. While it is more economical than alternative formalisms, such as collec…