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Four-loop critical exponents for the Gross-Neveu-Yukawa models

- N. Zerf, L. Mihaila, P. Marquard, I. Herbut, M. Scherer
- Physics
- 15 September 2017

We study the chiral Ising, the chiral XY and the chiral Heisenberg models at four-loop order with the perturbative renormalization group in $4-\epsilon$ dimensions and compute critical exponents for… Expand

Gross-Neveu-Yukawa model at three loops and Ising critical behavior of Dirac systems

- L. Mihaila, N. Zerf, Bernhard Ihrig, I. Herbut, M. Scherer
- Physics
- 26 March 2017

Dirac and Weyl fermions appear as quasiparticle excitations in many different condensed-matter systems. They display various quantum transitions which represent unconventional universality classes… Expand

Fluctuation-induced continuous transition and quantum criticality in Dirac semimetals

- L. Claßen, I. Herbut, M. Scherer
- Physics
- 24 May 2017

We establish a scenario where fluctuations of new degrees of freedom at a quantum phase transition change the nature of a transition beyond the standard Landau-Ginzburg paradigm. To this end we study… Expand

Compatible orders and fermion-induced emergent symmetry in Dirac systems

- L. Janssen, I. Herbut, M. Scherer
- Materials Science
- 29 November 2017

We study the quantum multicritical point in a (2+1)-dimensional Dirac system between the semimetallic phase and two ordered phases that are characterized by anticommuting mass terms with… Expand

Critical behavior of Dirac fermions from perturbative renormalization

- Bernhard Ihrig, L. Mihaila, M. Scherer
- PhysicsPhysical Review B
- 13 June 2018

Gapless Dirac fermions appear as quasiparticle excitations in various condensed-matter systems. They feature quantum critical points with critical behavior in the 2+1 dimensional Gross-Neveu… Expand

Deconfined criticality from the
QED3
-Gross-Neveu model at three loops

- Bernhard Ihrig, L. Janssen, L. Mihaila, M. Scherer
- PhysicsPhysical Review B
- 13 July 2018

The QED$_3$-Gross-Neveu model is a (2+1)-dimensional U(1) gauge theory involving Dirac fermions and a critical real scalar field. This theory has recently been argued to represent a dual description… Expand

Abelian Higgs model at four loops, fixed-point collision, and deconfined criticality

- Bernhard Ihrig, N. Zerf, P. Marquard, I. Herbut, M. Scherer
- PhysicsPhysical Review B
- 18 July 2019

The abelian Higgs model is the textbook example for the superconducting transition and the Anderson-Higgs mechanism, and has become pivotal in the description of deconfined quantum criticality. We… Expand

The Higgs mass and the scale of new physics

- A. Eichhorn, H. Gies, J. Jaeckel, T. Plehn, M. Scherer, Ren'e Sondenheimer
- Physics
- 12 January 2015

A bstractIn view of the measured Higgs mass of 125 GeV, the perturbative renormalization group evolution of the Standard Model suggests that our Higgs vacuum might not be stable. We connect the usual… Expand

Imaging the Electric Potential within Organic Solar Cells

- R. Saive, M. Scherer,
+4 authors W. Kowalsky - Chemistry, Physics
- 17 December 2013

The charge transport in organic solar cells is investigated by surface potential measurements via scanning Kelvin probe microscopy. Access to the solar cell's cross‐section is gained by milling holes… Expand

Multicritical behavior in models with two competing order parameters.

- A. Eichhorn, D. Mesterházy, M. Scherer
- PhysicsPhysical review. E, Statistical, nonlinear, and…
- 12 June 2013

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