Janos Asboth

Janos K. Asboth

Research Fellow ("Tudomanyos fomunkatars")
Department of Quantum Optics and Quantum Information, Institute for Solid State Physics and Optics, Wigner Research Centre for Physics of the Hungarian Academy of Sciences, Budapest, Hungary

Researcher ID: A-6050-2012

Contact

office: Building 1, office 125
email: janos.asboth@wigner.mta.hu
telephone: +36 1 392 2222/1264

postal address:
Janos Asboth
Department of Quantum Optics and Quantum Information
MTA Wigner FK SZFI
Budapest P.O. Box 49
Hungary

Research

  • Topological phases in quantum walks

Teaching

2015/2016

Topological Insulators (with Andras Palyi and Laszlo Oroszlany), Physics MSc and PhD students at Eotvos University
Cavity QED, Physics MSc and PhD students at Eotvos University

2013/2014

Topological Insulators (with Andras Palyi and Laszlo Oroszlany), Physics MSc and PhD students at Eotvos University
Cavity QED (with Peter Domokos), Physics MSc and PhD students at Eotvos University

2012/2013

Topological Insulators (with Andras Palyi and Laszlo Oroszlany), Physics MSc and PhD students at Eotvos University
Cavity QED (with Peter Domokos), Physics MSc and PhD students at Eotvos University

2011/2012

Cavity QED (with Peter Domokos), Physics MSc and PhD students at Eotvos University

Experience, Education

  • 2010.09 -
  • Research fellow, Wigner Research Centre, Budapest, Dept of Quantum Optics and Quantum Information, group of Peter Domokos
  • 2008.09-2010.08    
  • Postdoctoral researcher, Lorentz Institute, Leiden, group of Carlo Beenakker
  • 2008
  • PhD, Physics, University of Innsbruck
  • 2003.09-2008.05
  • PhD student, University of Innsbruck (supervisors: H. Ritsch and P. Domokos)
  • 2003
  • Diploma, Physics, Eotvos University, Budapest
  • 2001
  • Erasmus Student, University of Tours, Dynamics of vortices in type-II superconductors with an ordered array of pinning sites, tutor J-C Soret
  • 2000
  • Summer Student, CERN, data analysis at NA49

Publications

Find the list of my publications on Google Scholar, and in the Database of the Hungarian Academy of Science. My most important publications:
  1. Janos K. Asboth, Laszlo Oroszlany, Andras Palyi
    A Short Course on Topological Insulators: Band-structure topology and edge states in one and two dimensions
    submitted to Lecture Notes in Physics
  2. T. Rakovszky and J. K. Asboth
    Localization, delocalization, and topological phase transitions in the one-dimensional split-step quantum walk
    submitted to Phys. Rev. A
  3. J. M. Edge and J. K. Asboth
    Localisation, delocalisation, and topological transitions in disordered 2D quantum walks
    Phys. Rev. B 91, 104202 (2015)
  4. J. K. Asboth, B. Tarasinski, P. Delplace
    Chiral symmetry and bulk-boundary correspondence in periodically driven one-dimensional systems
    Phys. Rev. B 90, 125143 (2014)
  5. Asboth JK,
    Symmetries, topological phases, and bound states in the one-dimensional quantum walk
    Phys. Rev. B 86, 195414 (2012)
  6. Asboth JK, Akhmerov AR, Berceanu AC, Beenakker CWJ,
    Pseudodiffusive transmission of nodal Dirac fermions through a clean d-wave superconductor
    Phys. Rev. B 80, 224517 (2009)
  7. Asboth JK, Ritsch H, Domokos P,
    Collective excitations and instability of an optical lattice due to unbalanced pumping
    Phys. Rev. Lett. 98, 203008 (2007)
  8. Asboth JK, Domokos P, Ritsch H, Vukics A,
    Self-organization of atoms in a cavity field: Threshold, bistability, and scaling laws
    Phys. Rev. A 72, 053417 (2005)
  9. Asboth JK, Calsamiglia J, Ritsch H,
    Computable measure of nonclassicality for light
    Phys. Rev. Lett. 94, 173602 (2005)
  10. Vukics A, Asboth J, Meszena G,
    Speciation in multidimensional evolutionary space
    Phys. Rev. E 68, 041903 (2003)

Awards

  • 2014 Sept - : Janos Bolyai Grant
  • 2013 Jan - 2014 Apr: Zoltan Magyary Postdoctoral Grant
  • 2011: Junior Prima Award

Conferences

2015 Nov 16 - 18: Workshop of Quantum Simulation and Quantum Walks, Yokohama, Japan.
talk: Quantum walks vs Periodically Driven Hamiltonians: topological classification
2014 Nov 12 - 14: Topological and Dirac matter: from modeling to imaging, Bordeaux, France.
poster: Chiral Symmetry and End States in Periodically Driven 1D Systems
2014 July 7 - July 10: New Trends in Topological Insulators, Berlin, Germany.
poster: Chiral Symmetry and End States in Periodically Driven 1D Systems
2013 Nov 11 - 15: Conference on Quantum Simulations and Quantum Walks, Pisa, Italy.
talk: Chiral Symmetry and Topologically Protected States in Quantum Walks
2013 July 29 - Aug 1: WE-Heraeus-Seminar: Classical and Quantum Transport in Complex Networks, Bad Honnef, Germany.
talk: Edge states and efficient transport in a 2-dimensional Quantum Walk
2012 Aug 14-26: The 6th Windsor Summer School: Low-Dimensional Materials, Strong Correlations, and Quantum Technologies, Windsor, UK.
poster: Topological Phases and Bound States in the Discrete Time Quantum Walk
2012 July 2-6: Majorana Fermions in Condensed Matter, Leiden, Netherlands.
2012 May 3-7: Workshop on the dynamics and asymptotics in the Dicke model and quantum networks, Matrahaza, Hungary.
talk: Topological phases and edge states in the 1D discrete-time quantum walk
2012 March 18-22: Interdisciplinary Workshop on Topological States of Matter, Freiburg, Germany.
talk: Topological phases and edge states in quantum walks
2010 Jan 19-20: Annual Meeting of the Dutch Physical Society, Veldhoven, Netherlands.
poster: Pseudodiffusive transmission of nodal fermions through a clean d-wave superconductor
2009 July 6-24: ICTP Summer College on Non-Equilibrium Physics from Classical to Quantum Low Dimensional Systems, Trieste, Italy
2009 Jan 20-21: Annual Meeting of the Dutch Physical Society, Veldhoven, Netherlands
2007 Aug 6-18: The 4th Windsor Summer School on Condensed Matter Theory:
   Quantum Transport and Dynamics in Nanostructures
, Windsor, UK
poster: Asymmetrically pumped optical lattices: collective excitations and instability
2007 March 19-23: DPG Fruhjahrstagung des Arbeitskreises Atome, Molekule, Quantenoptik und Plasmen, Düsseldorf, Germany
talk: Asymmetrically pumped optical lattices: collective excitations and instability
2007 Feb 4-9: ESF Research Conference on Trends in Optical Micromanipulation, Obergurgl, Austria
poster: Dynamical instability of an opticaly bound system due to unbalanced pumping
2006 July 16-21: 20th International Conference on Atomic Physics, Innsbruck, Austria
poster: Many atoms in a cavity: trapping through self-organization
2006 June 13-15: Quantum Information Processing Workshop, Pecs, Hungary
talk: Quantifying the Nonclassicality of Quantum States of Light
2006 Feb 26-March 3: Achievements and Perspectives of Cold Molecules, Les Houches, France
2005 Sept 27-29: 55th Annual Meeting of the Austrian Physical Society (OEPG), Vienna, Austria
talk: Many atoms in a cavity: trapping through self-organization
2005 May 20-26: Quantum Physics of Nature, Vienna, Austria
poster: A computable measure of nonclassicality for light
2005 May 2-6: 9th International Conference on Squeezed States and Uncertainty Relations, Besancon, France
talk: A computable measure of nonclassicality for light
2004 Sept 21-24: Workshop on Microcavities in Quantum Optics, Ringberg, Germany
poster: Dynamics of two atoms in a high-Q optical cavity
2004 July 18-20: 11th Central European Workshop on Quantum Optics, Trieste, Italy
talk: A computable measure of nonclassicality for light
2004 March 13-17: 10th Young Atom Opticians meeting, Innsbruck, Austria
poster: Correlated motion of two atoms in a cavity
2004 Feb 28-March 6: 42nd Winter School in Theoretical Physics:
Quantum Coherence in Matter: From Quarks to Solids, Schladming, Austria
2003 Dec: SFB "Control and Measurement of Coherent Quantum Systems" meeting, Innsbruck, Austria
talk: Correlated motion of two atoms in a cavity
2003 Oct: Hungarian Symposium on Quantum Electronics, Budapest, Hungary
poster: Entanglement and Decoherence of Coherent-state Quantum Bits
2003 Sept: EURESCO Conference on Quantum Optics and Nanotechnology, Granada, Spain
poster: Correlated motion of two atoms in a cavity
2003 April: OTDK - Conference of Students in Research, Miskolc, Hungary
talk: Collective Motional States of Vortices in Superconductors with a Lattice of Pinning Sites
2003 April: 10th Central European Workshop on Quantum Optics, Rostock, Germany
talk: Decoherence of entangled coherent states: a qubit description
2002 July: Wigner Centennial Conference, Pécs, Hungary
organizer, talk: Two-mode Schrödinger cats, entanglement and teleportation
2002 May: 9th Central European Workshop on Quantum Optics, Szeged, Hungary
coauthor of talk held by prof. József Janszky
2001 Sept.: CNRS GDR 2284 - Disordered Systems, St Flour, France
poster: Dynamics of vortices in superconductors with an ordered array of pinning sites
2001 April: OTDK - Conference of Students in Research, Pécs, Hungary
talk: Computer Study of Sympatric Speciation in a 2-dimensional Strategy Space (with András Vukics)
1999 Aug: International Conference of Physics Students, Helsinki
talk: Biological Evolution with Feedback