Near-Schr\'odinger dynamics at large charge

Bibliographic Details
Title: Near-Schr\'odinger dynamics at large charge
Authors: Orlando, Domenico, Pellizzani, Vito, Reffert, Susanne
Source: Phys. Rev. D 103, 105018 (2021)
Publication Year: 2020
Collection: High Energy Physics - Theory
Subject Terms: High Energy Physics - Theory
More Details: In this note we discuss a non-relativistic system at large charge in a regime where Schr\"odinger symmetry is slightly broken by an explicit mass term for the dilaton field which non-linearly realizes non-relativistic scale invariance. To get there, we first develop the large-charge formalism from the linear sigma model perspective, including the harmonic trapping potential necessary for the non-relativistic state-operator correspondence. As a signature of the explicit breaking, we identify a $\sqrt{Q}\log{Q}$ term, which depending on the space dimension is either of the same order as the effects coming from the breakdown of the EFT at the edge of the particle cloud, or can be distinguished from these effects over a large range of orders of magnitude.
Comment: Matches published version in PRD
Document Type: Working Paper
DOI: 10.1103/PhysRevD.103.105018
Access URL: http://arxiv.org/abs/2010.07942
Accession Number: edsarx.2010.07942
Database: arXiv
More Details
DOI:10.1103/PhysRevD.103.105018