6 papers
Dressed States Call for Logarithmic Asymptotic Symmetries
Jorrit Bosma, Jeremy A. Mann, Charles Marteau +2
Inspired by Wigner's classification of elementary particles as irreducible unitary representations of a spacetime symmetry group, we ask what group can give rise in this way to the…
Quantum Mechanics on Lie Groups: II. Path Integrals
Mathieu Beauvillain, Blagoje Oblak, Marios Petropoulos
We continue our study of quantum dynamics on a Lie group , initiated in arXiv:2512.19840, by building the path integral that governs transition amplitudes in the Hilbert space $…
Quantum Mechanics on Lie Groups: I. Noncommutative Fourier Transforms
Mathieu Beauvillain, Blagoje Oblak, Marios Petropoulos
Starting from square-integrable wave functions on a Lie group, we build an invertible Fourier transform mapping them on wave functions on the dual of the Lie algebra. This is a gro…
Nonequilibrium Probes of Quantum Geometry in Gapless Systems
Bastien Lapierre, Per Moosavi, Blagoje Oblak
Much of our understanding of gapless quantum matter stems from low-energy descriptions using conformal field theory. This is especially true in 1+1 dimensions, where such theories…
Berry Phases in the Bosonization of Nonlinear Edge Modes
Mathieu Beauvillain, Blagoje Oblak, Marios Petropoulos
We consider chiral, generally nonlinear density waves in one dimension, modelling the bosonized edge modes of a two-dimensional fermionic topological insulator. Using the coinciden…
Quantum Hall edges beyond the plasma analogy
Per Moosavi, Blagoje Oblak, Bastien Lapierre +2
We demonstrate that the widely used plasma analogy is unreliable at predicting edge properties of quantum Hall states. This discrepancy arises from a fundamental difference between…