28 citations · 205 across the 19 of their papers we have counts for
19 papers
The fermion sector of the SMEFT from asymptotically safe gravity
Astrid Eichhorn, Moritz Gessner, Shouryya Ray
Quantum gravity impacts Standard Model fields through effective interactions generated by renormalization. These appear as Standard Model Effective Field Theory (SMEFT) operators,…
Non-Lagrangian phases of matter from Wilsonian renormalization of 3D Wess-Zumino-Witten theory on Stiefel manifolds
Shouryya Ray
I study the renormalization of D-dimensional level-k Wess-Zumino-Witten theory with Stiefel-manifold target space , wit…
Gross-Neveu-Yukawa SO(2) and SO(3) tensorial criticality
SangEun Han, Shouryya Ray, Igor F. Herbut
We investigate the relativistic SO(2)- and SO(3)-invariant Gross-Neveu-Yukawa field theories for real, rank-two, symmetric, traceless tensor order parameters coupled to $N_{\text{f…
Crossing the desert: Towards predictions for SMEFT coefficients from quantum gravity
Lydia Brenner, Abhishek Chikkaballi, Astrid Eichhorn +1
The SMEFT provides a general framework to search for new physics beyond the current reach of direct detection. One such form of new physics is quantum gravity. Based on dimensional…
A non-local way around the no-global-symmetries conjecture in quantum gravity?
Johanna Borissova, Astrid Eichhorn, Shouryya Ray
The no-global-symmetries conjecture is central to the swampland program that delineates the boundary between effective field theories that can be obtained from a quantum theory of…
The Nordic-walking mechanism and its explanation of deconfined pseudocriticality from Wess-Zumino-Witten theory
Bilal Hawashin, Astrid Eichhorn, Lukas Janssen +2
The understanding of phenomena falling outside the Ginzburg-Landau paradigm of phase transitions represents a key challenge in condensed matter physics. A famous class of examples…
Light fermions in color: why the quark mass is not the Planck mass
Gustavo P. de Brito, Astrid Eichhorn, Shouryya Ray
We investigate whether quantum gravity fluctuations can break chiral symmetry for fermions that are charged under a and an gauge symmetry and thus closely r…
Suppression of proton decay in quantum gravity
Astrid Eichhorn, Shouryya Ray
The bound on the proton lifetime is one of a small handful of observations that constrains physics not far from the Planck scale. This calls for a calculation of the proton lifetim…
Unconventional Gross-Neveu quantum criticality: Interaction-induced SO(3)-biadjoint insulator and emergent SU(3) symmetry
Shouryya Ray
I point out that Gross-Neveu theory with SO(3) isospin in three spacetime dimensions -- proposed recently, for instance, as an effective description of the Néel transition in certa…
Gross-Neveu-Heisenberg criticality from expansion
Konstantinos Ladovrechis, Shouryya Ray, Tobias Meng +1
The Gross-Neveu-Heisenberg universality class describes a continuous quantum phase transition between a Dirac semimetal and an antiferromagnetic insulator. Such quantum critical po…
Towards a Higgs mass determination in asymptotically safe gravity with a dark portal
Astrid Eichhorn, Martin Pauly, Shouryya Ray
There are indications that an asymptotically safe UV completion of the Standard Model with gravity could constrain the Higgs self-coupling, resulting in a prediction of the Higgs m…
Gross-Neveu-Heisenberg criticality from competing nematic and antiferromagnetic orders in bilayer graphene
Shouryya Ray, Lukas Janssen
We study the phase diagram of an effective model of competing nematic and antiferromagnetic orders of interacting electrons on the Bernal-stacked honeycomb bilayer, as relevant for…
Fractionalized quantum criticality in spin-orbital liquids from field theory beyond the leading order
Shouryya Ray, Bernhard Ihrig, Daniel Kruti +3
Two-dimensional spin-orbital magnets with strong exchange frustration have recently been predicted to facilitate the realization of a quantum critical point in the Gross-Neveu-SO(3…
Soluble Fermionic Quantum Critical Point in Two Dimensions
Shouryya Ray, Matthias Vojta, Lukas Janssen
We study a model for a quantum critical point in two spatial dimensions between a semimetallic phase, characterized by a stable quadratic Fermi node, and an ordered phase, in which…
Quantum critical behavior of two-dimensional Fermi systems with quadratic band touching
Shouryya Ray, Matthias Vojta, Lukas Janssen
We consider two-dimensional Fermi systems with quadratic band touching and symmetry, as realizable in Bernal-stacked honeycomb bilayers. Within a renormalization-group analys…
Carrier dynamics in doped bilayer iridates near magnetic quantum criticality
Shouryya Ray, Matthias Vojta
Motivated by experiments on the carrier-doped bilayer iridate , we study the dynamics of a single doped electron in a bilayer m…
Dynamics of interacting bosons using the Herman-Kluk semiclassical initial value representation
Shouryya Ray, Paula Ostmann, Lena Simon +2
Recent experimental progress using ultracold gases in optical lattices necessitates a quantitative theoretical description for a significant number of bosons. In the present paper,…
Efficient modelling of particle collisions using a non-linear viscoelastic contact force
Shouryya Ray, Tobias Kempe, Jochen Fröhlich
In this paper the normal collision of spherical particles is investigated. The particle interaction is modelled in a macroscopic way using the Hertzian contact force with additiona…
An analytic solution to the equations governing the motion of a point mass with quadratic resistance and generalizations
Shouryya Ray, Jochen Fröhlich
The paper is devoted to the motion of a body in a fluid under the influence of gravity and drag. Depending on the regime considered, the drag force can exhibit a linear, quadratic…