Weyl and Dirac Semimetals as a Laboratory for High-Energy Physics

Jun 25, 2025, 9:00 AM → Jun 28, 2025, 6:00 PM Europe/Lisbon

Bruno Amorim (LaPMET, CF-UM-UP, Faculdade de Ciências da Universidade do Porto), Andrey Sadofyev (LIP), Mikhail Vasilevskiy (University of Minho)

Recent advances in topological materials have opened new avenues for studying emergent phenomena that closely resemble effects predicted in the Standard Model of particle physics and cosmology. A striking example is the axial anomaly, which manifests as negative magnetoresistance in Weyl semimetals. Given the rapid progress on both theoretical and experimental fronts, cross-field interactions have become more crucial than ever. This workshop, jointly organized by the Laboratory of Instrumentation and Experimental Particle Physics and the Center for Physics of the Universities of Minho and Porto, aims to bring together experts investigating high-energy physics phenomena in Weyl and Dirac semimetals and related systems, fostering interdisciplinary discussions and collaborations.

Wed, June 25

9:00 AM → 9:25 AM Registration

Opening session

9:25 AM → 9:35 AM Welcome message from the president of the School of Sciences

Speaker: Prof. José Manuel González Méijome (School of Sciences, University of Minho)

9:35 AM → 10:10 AM Chiral magnetic effect: current status and open problems

Speaker: Dmitri Kharzeev (Stony Brook University and BNL)

Braga-CME-Kharzeev.pdf

Braga-CME-Kharzeev.pptx

10:10 AM → 11:00 AM Coffee Break

11:00 AM → 11:35 AM Geometric Semimetals

Speaker: Giandomenico Palumbo

Palumbo.pdf

11:35 AM → 12:10 PM Non-equilibrium charge-vortex duality

Speaker: Piotr Surowka

Seminar.key

12:10 PM → 12:45 PM Dirac Kondo effect under magnetic catalysis

Speaker: Koichi Hattori

Weyl_and_Dirac_Semimetals@Braga-Hattori.pptx

12:45 PM → 2:25 PM Lunch

2:25 PM → 3:00 PM Wigner-Weyl calculus for non-Abelian gauge theory

Speaker: Mikhail Zubkov

zubkov_Braga_2025_shorttened.pdf

3:00 PM → 3:35 PM Non-renormalization of the fractional quantum Hall conductivity by interactions

Speaker: Maik Selch

conference_talk_Braga_Maik_Selch_final.pdf

3:35 PM → 4:25 PM Coffee Break

4:25 PM → 5:00 PM 1-form symmetry, Conductivity vs Resistivity & Operator lifetime in chiral MHD

Speaker: Napat Poovuttikul

rhoVSsigma at Braga.pdf

Thu, June 26

9:35 AM → 10:10 AM Axions and Superfluifity in Weyl semimetals

Speaker: Emil Mottola

AxionWSM_Braga.pdf

10:10 AM → 11:00 AM Coffee Break

11:00 AM → 11:35 AM Photonic axion insulators

Speaker: Chiara Devescovi

Axion Domain Walls in Photonic Crystals.pdf

11:35 AM → 12:10 PM Experimental challenges of topological insulators: from growth to axion electrodynamics

Speaker: Carlos Rosário

Talk_CRosario_TIs_axion_electrodynamics.pptx

12:10 PM → 12:45 PM Exploring Axionic Physics with Weyl Semimetals

Speaker: Alberto Cortijo

axions 3.pdf

12:45 PM → 2:25 PM Lunch

2:25 PM → 3:00 PM CFT in Momentum Space for Parity-odd Interactions, Axions and Dilatons

Speaker: Claudio Corianò

TalkBraga1.pdf

TalkBraga1.pptx

3:00 PM → 3:35 PM Sum rules for Chiral, Conformal and Gravitational anomaly form factors

Speaker: Dario Melle

Sum rules for Chiral, Conformal and Gravitational anomaly form factors.pdf

3:35 PM → 4:25 PM Coffee Break

4:25 PM → 5:00 PM The quantum Newton`s bucket

Speaker: Giorgio Torrieri (State University of Campinas (Unicamp),Brasil)

bucket.pdf

5:00 PM → 5:35 PM Experimental status of the condensed matter axion

Speaker: Olivia Liebman

Liebman_WeylDiracWorkshop_26June2025.pdf

Fri, June 27

9:00 AM → 9:35 AM A new scale anomaly in Dirac matter

Speaker: María Vozmediano (CSIC)

25VozmedianoBraga.key

9:35 AM → 10:10 AM Exotic properties of strongly interacting matter under rotation

Recent first-principles lattice simulations of SU(N) Yang-Mills theory in 3+1 dimensions have revealed that the gluon plasma exhibits several unexpected equilibrium properties in a rotating state: (i) a negative moment of inertia within a certain temperature range; (ii) the formation of a thermodynamically stable inhomogeneous mixed phase that does not align with the conventional Tolman–Ehrenfest relation in static gravitational backgrounds; and (iii) a rotation-induced enhancement of the critical deconfinement temperature. We briefly review these surprising numerical observations and argue that they may share a common origin rooted in enhancement of the gluonic coupling in a non-inertial rotating frame. We suggest that such phenomena may be probed experimentally in synthetic non-Abelian gauge fields engineered in condensed matter systems.

Speaker: Maxim Chernodub (Institut Denis Poisson, CNRS, Tours, France)

Chernodub_Braga.pdf

10:10 AM → 11:00 AM Coffee Break

11:00 AM → 11:35 AM Moiré Dirac Semimetals and the role of quasiperiodicity

Speaker: Eduardo Castro

evcastro_Weyl-Braga.pdf

11:35 AM → 12:10 PM Effect of disorder on surface states of Weyl nodal loop semimetals

Speaker: Miguel Araujo

Chiral-disorder-WNL.key

12:10 PM → 12:45 PM Disordered Three-Dimensional Weyl Electrons

Speaker: João Pires

Presentation_27Jun2025_v1.0.pdf

12:45 PM → 2:25 PM Lunch

2:25 PM → 3:00 PM Vortical effects in chiral band structures

Speaker: Pavan Hosur (University of Houston)

Vortical effects.pptx

3:00 PM → 3:35 PM Chiral fermions on the lattice

Speaker: Srimoyee Sen

braga-talk.pdf

3:35 PM → 4:25 PM Coffee Break

4:25 PM → 5:00 PM Real-time Chiral Magnetic Effect from Monte-Carlo simulations in imaginary time

Speaker: Pavel Buividovich

cme_nomu5_talk.pdf

Sat, June 28

9:35 AM → 10:10 AM Emergence of Pseudo-Gauge Fields from Evolving Geometries in Graphene

Speaker: Pablo Morales

Braga_Workshop.pdf

10:10 AM → 10:45 AM Berry Curvature and Spin-One Color Superconductivity

Speaker: Noriyuki Sogabe

Braga_final.pdf

10:45 AM → 11:35 AM Coffee Break

11:35 AM → 12:10 PM Examining the Anomalous Nature of Chiral Effects in Thermodynamics

Speaker: Rémy Larue

PresentationRemyLarue.pdf

12:10 PM → 12:45 PM Nonlinear and nonperturbative transport in topological semimetals

Speaker: Renato Dantas

RD_DiracWeylLaboratoryHEP.key

12:45 PM → 2:25 PM Lunch