Projects
My research concentrates on disordered, frustrated and out-of-equilibrium systems, mostly in quantum condensed matter, but also in classical systems. An important part of my work is concerned with a wide variety of disordered and strongly interacting systems such as magnets, semiconductors, superconductors, cold atomic gases, and electron or spin glasses. These structurally complex systems host a wealth of interesting phenomena, not present in standard ordered matter, namely: Quantum localization, non-trivial ergodicity breaking, dynamics far off equilibrium, memory effects, etc. The interplay of interactions, disorder and quantum fluctuations is very rich, and raises questions of fundamental nature in quantum statistical physics.
I am a member of the Quantum Technology Collaboration (QTC@PSI).
I am coordinating and organising the CMT Seminars, CM Colloquia and PSI Colloquia.
Current projects:
Quantum magnetism out of equilibrium, since 2021.
Using nuclear spins to probe and tune quantum phases in rare earth pyrochlores, since 2018.
Theory of non-linear response and many-body localization in localized quantum magnets, since 2017.
Curriculum Vitae
Academic Education
2000: Diploma of Physics, ETH Zürich, Switzerland
2003: PhD; Université de Paris Sud, LPTMS, Orsay, France
Employment History
since 2015: Condensed matter theory group, PSI Villigen. Senior Scientist.
2009-2016: The Abdus Salam International Centre for Theoretical Physics, ICTP, Italy. Permanent Scientific Staff Member
2008-2009: Department of Theoretical Physics, University of Geneva, Switzerland. Junior Professorship of the Swiss National Science Foundation.
2006-2008: Department of Physics, Harvard University, Cambridge MA, USA. Postdoctoral Fellow.
2003-2006 Department of Physics and Astronomy, Rutgers University, Piscataway NJ, USA. Postdoctoral Associate.
Publications
Full publication list - Markus Müller
OrcID: 0000-0002-0299-952X
ResearcherID: L-5058-2013
Selected publications:
Universal quantum computing using electro-nuclear wavefunctions of rare-earth ions. M. Grimm, A. Beckert, G. Aeppli, and M. Müller, PRX Quantum 2, 010312 (2021).
Using uniaxial stress to probe the relationship between competing superconducting states in a cuprate with spin-stripe order. Z. Guguchia, et al., Phys. Rev. Lett. 125, 097005 (2020).
Perturbative approach to tunneling and quantum interferences in spin clusters. I. A. Maceira, F. Mila, and M. Müller, Phys. Rev. B 101, 104416 (2020).
Light-induced evaporative cooling of holes in the Hubbard model.
P. Werner, M. Eckstein, M. Müller, and G. Refael, Nat. Comm. 10, 5556 (2019).
Spin fluctuation induced Weyl semimetal state in the paramagnetic phase of EuCd2As2, J.-Z. Ma, et al., Sci. Adv. 5, eeaw4718 (2019).
Absence of many-body mobility edges, W. de Roeck, F. Huveneers, M. Müller, and M. Schiulaz, Phys. Rev. B 93, 014203 (2016).
Thermalization and many-body localization in systems under dynamic nuclear polarization A. de Luca, I. Rodriguez Arias, M. Müller, and A. Rosso, Phys. Rev B 94, 014203 (2016).
Marginal stability in structural, spin and electron glasses, M. Müller and M. Wyart, Annu. Rev. Condens. Matter Phys. 6, 9 (2015).
Integrals of motion in the many-body localized phase, V. Ros, M. Müller, A. Scardicchio, Nucl. Phys. B. 891, 420 (2015); 900, 446 (2015).
Ideal quantum glass transitions: many-body localization without quenched disorder, M. Schiulaz, and M. Müller, AIP Conf. Proc. 1610, 11 (2014).
Localization of disordered bosons and magnets in random fields, X. Yu, and M. Müller, Ann. Phys. (NY) 337, 55 (2013).
Quantum statistics-induced flow patterns in driven ideal Fermi gases, M. Beria, Y. Iqbal, M. di Ventra, and M. Müller, Phys. Rev. A 88, 043611 (2013).
Multifractality and quantum-to-classical crossover in the Coulomb anomaly at the Mott-Anderson metal-insulator transition, M. Amini, V. Kravtsov, and M. Müller, New J. Phys. 16, 015022 (2014).
Long-range quantum Ising spin glasses at T = 0: Gapless collective excitations and universality, A. Andreanov, and M. Müller, Phys. Rev. Lett. 109, 177201 (2012).
Giant positive magnetoresistance and localization in bosonic insulators, M. Müller, EPL 102, 67008 (2013).
Avalanches in mean-field models and the Barkhausen noise in spin-glasses, P. Le Doussal, M. Müller, and K. Wiese, EPL 91, 57004 (2010).
Graphene - a nearly perfect liquid, M. Müller, J. Schmalian, and L. Fritz, Phys. Rev. Lett. 103, 025301 (2009).
Quantum-critical relativistic magnetotransport in graphene, M. Müller, L. Fritz, and S. Sachdev, Phys. Rev. B 78, 115406 (2008).
Quantum critical transport in clean graphene, L. Fritz, J. Schmalian, M. Müller, and S. Sachdev, Phys. Rev. B 78, 085416 (2008).
Theory of the Nernst Effect near Quantum Phase Transitions in Condensed Matter and in Dyonic Black Holes, S. A.Hartnoll, P. K. Kovtun, M. Müller, and S. Sachdev, Phys. Rev. B 76, 144502 (2007).
The Glass Transition and the Coulomb Gap in Electron Glasses, M. Müller and L. B. Ioffe Phys. Rev. Lett. 93, 256403 (2004).