571 citations · 3.9k across the 120 of their papers we have counts for
122 papers
Massive and massless particles in Mielke--Baekler geometries
Carles Batlle, Roberto Casalbuoni, Daniele Dominici +2
The Mielke--Baekler geometries are three-dimensional reductive homogeneous spacetimes together with a choice of invariant connection which is compatible with a lorentzian metric. T…
The spectrum of the bosonic ambitwistor string revisited
José M. Figueroa-O'Farrill, Girish S. Vishwa
We revisit the calculation of the spectrum of the bosonic ambitwistor string, understood as the BRST cohomology or, equivalently, as the semi-infinite cohomology of the $\mathrm{BM…
Quantum carrollian bosonic strings
José Figueroa-O'Farrill, Emil Have, Niels A. Obers
We study a recently discovered carrollian bosonic string, described classically by a sigma model where both the worldsheet and the target spacetime are carrollian. After fixing the…
Planons and their Carroll-Galilei symmetries
José Figueroa-O'Farrill, Simon Pekar, Alfredo Pérez +1
We study the dynamics of planons, particles whose mobility is restricted to a plane, through the classification of coadjoint orbits and unitary irreducible representations of the c…
A Celestial Kinematical Interpretation for an Extended BMS
Carles Batlle, Roberto Casalbuoni, Daniele Dominici +2
Motivated by the work of Longhi and Materassi, who constructed a realisation of the (centreless) BMS algebra for the massive Klein-Gordon field in , we build a realisation…
Non-relativistic quantum strings from gauged WZW models
José M Figueroa-O'Farrill, Girish S Vishwa
We construct non-relativistic quantum strings from gauged Wess--Zumino--Witten (WZW) models. We depart from the fact that Lie groups with a bi-invariant galilean structure can be s…