Phenomenology 2022 Symposium: From Virtual to Real

Session

Theory II

10 May 2022, 16:30

Lawrence Hall 205

Conveners

Theory II

• Seth Koren
• Seth Koren

199. Holographic dilaton action: the a-term

Ameen Ismail

10/05/2022, 16:30

Spontaneously broken conformal sectors are ubiquitous in model-building. Despite this, little is understood about the Lagrangian for the dilaton, the Goldstone boson of broken scale invariance. We investigate the higher-derivative terms in the dilaton action, focusing on the unique four-derivative term allowed by symmetry. This term is closely related to the famous a-theorem, and we argue it...

171. U(1) Holography and a Continuum Dark Photon

Ian Chaffey

10/05/2022, 16:45

We consider an Abelian gauge field in $(d+1)$-dimensional anti-de Sitter space (AdS). The gauge symmetry is Higgsed by a bulk scalar with symmetry breaking triggered from an ultraviolet brane that regulates the AdS boundary. We show that the bulk mass of the Higgs field controls whether the $d$-dimensional spectrum of the gauge field is a continuum, gapped continuum, or a discretuum. When the...

113. A New Horizon in the Randall-Sundrum Phase Transition

Bharath Sambasivam

10/05/2022, 17:00

Theoretical Developments I

Randall-Sundrum models are an attractive, extra-dimensional geometric solution to the hierarchy problem. Stabilization of these geometries is important to obtain relevant low-energy phenomenology. This also provides dynamics for early universe cosmology via motion of branes through a Radion potential. Although much is known about the dynamics close to the global minimum of the Radion...

45. The spatial Functional Renormalization Group and Hadamard states on cosmological spacetimes

Rudrajit Banerjee (University of Pittsburgh)

10/05/2022, 17:15

In this talk I will introduce a novel "spatial" variant of the Functional Renormalization Group (FRG) on Lorentzian signature globally hyperbolic spacetimes. The adaptation of the FRG technique (typically studied on Euclidean signature manifolds) to Lorentzian signature spacetimes features several new conceptual aspects, in particular that such a FRG must inevitably be quantum-state dependent...

100. Simulating 3+1 Dimension Schwinger Pair Production with Quantum Computers

Bin Xu

10/05/2022, 17:30

Real-time quantum simulation of quantum field theory beyond one spatial dimension is always challenging due to limited resources and the imperfect control of noises in the noisy intermediate-scale quantum era. In this work, we develop a novel algorithm and experimentally study the Schwinger effect in (3+1)D. The resource reduction is achieved by introducing several techniques, including...

140. Generalized partial waves and bottom-up EFT

Minglei Xiao

10/05/2022, 17:45

I will present the technique of constructing the generalized partial waves and the corresponding local operators. It implies the selection rules at loop level amplitudes. We can also formulate a bottom-up investigation of the tree-level UV origins of effective operators, which is helpful to phenomenological searches for heavy particle resonances.