The Budapest Quantum Optics Group


Upcoming seminars

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Past seminars

May 28, 2018 – Jun 1, 2018 Search and Problem Solving by Random Walks: Drunkards vs Quantum Computers
Nov 17, 2016 – Nov 20, 2016 Workshop on Quantum Simulation and Quantum Walks 2016
Nov 14, 2016 Dávid Jakab Bilinear-Biquadratic model on the complete graph
Oct 18, 2016 János Asbóth Detecting topological invariant from loss
May 3, 2016 Martin Stefanak Perfect state transfer from quantum walk search algorithm
Apr 11, 2016 Orsolya Kálmán What we have learned about out-coupling from a BEC
Mar 8, 2016 Gergely Szirmai (journal club) Cavity-induced chiral states of fermionic quantum gases
Mar 1, 2016 Tibor Rakovszky Topologikus fázisok klasszifikációja és detektálása egy dimenzióban mátrix-szorzat állapotokkal
Feb 16, 2016 Sebastian Fuchs From Casimir-Polder force between an atom and a topological insulator to Dicke physics
Jan 26, 2016 Gábor Kónya Two-particle scattering on a delta potential (cont.)
Jan 19, 2016 Gábor Kónya Two-particle scattering on a delta potential
Jan 12, 2016 András Vukics Introduction to quantum thermodynamical processes and cycles
Jan 5, 2016 Dániel Tóth The reversed dissipation regime in circuit electromechanics
Dec 8, 2015 Nils Trautmann Single-photon induced elementary quantum processes for​ ​quantum information​ ​processing
Nov 3, 2015 András Vukics Beszámoló a 600. WE Heraeus szemináriumról
Oct 20, 2015 János Asbóth & Tibor Rakovszky Measuring the Chern number with ultracold atoms
Oct 6, 2015 Zsolt Kis Introducing resonators in quantum optics from first principles
Sep 29, 2015 Tobias Griesser Phase transition in the electric-dipole Hamiltonian with short-range interaction​
Sep 22, 2015 András Gilyén Exponential Sensitivity and its Cost in Quantum Physics
Jul 7, 2015 Izabella Lovas Particle number distribution in time of flight measurements with one dimensional interacting Bose gases
Jul 1, 2015 Alicia Kollár Beyond mean-field physics with multimodecavity QED
Jun 11, 2015 Benjamin Rousseaux Multi-emitter stimulated Raman adiabatic passage mediated by plasmons
May 19, 2015 András Vukics Az atomi leírás problémái multipólus-mértékben
Apr 21, 2015 Lajos Diósi Test of Spontaneous Collapse Models in Mechanical Oscillators
Apr 14, 2015 Dávid Nagy Journal club
Mar 31, 2015 Zoltán Zimborás Directed quantum walks
Mar 25, 2015 Andrew B. Frigyik The mathematical background of 'Recurrence for discrete time unitary evolutions' by Grünbaum, Velázquez, Werner and Werner
Mar 20, 2015 Bálint Kollár Disorder and entropy rate in discrete time quantum walks
Mar 19, 2015 Zoltán Darázs Dynamical properties of quantum systems with a few degrees of freedom
Mar 18, 2015 Péter Földi Egyrészecske szórásproblémák időfüggő potenciálokon: nemegyensúlyi Green-függvények (TDNEGF) alkalmazása
Mar 3, 2015 Bálint Kollár The trapping problem of quantum walks
Feb 24, 2015 Viktor Szalay Understanding nuclear motions in molecules: A new ro-vibrational Hamiltonian
Feb 17, 2015 Nikolett Német Conditional Phase Gate Using an Optomechanical Resonator
Feb 11, 2015 Jaroslav Novotny Asymptotics of Quantum Markov semigroups
Feb 3, 2015 Gergely Szirmai Tunneling dynamics of bosonic Josephson junctions assisted by a cavity field
Jan 19, 2015 János Asbóth Localization, Diffusion, Topological Phases in 2-D quantum walks
Jan 13, 2015 Dávid Nagy Critical exponent of dissipative phase transitions in a sub-ohmic bath
Jan 6, 2015 Nóra Sándor Resonant dipole-dipole interaction in a 2D waveguide
Dec 11, 2014 Tibor Rakovszky Delocalisation and topological phases in disordered quantum walks
Nov 24, 2014 András B. Frigyik Dynamics and Stability of Bose-Einstein Condensates: The Nonlinear Schrödinger Equation with Periodic Potential
Nov 24, 2014 Bálint Kollár Disorder and entropy rate in discrete time quantum walks
Nov 20, 2014 Gábor Demeter Photon echo and quantum memory for photons
Oct 14, 2014 János Asbóth Topologically protected edge states in a periodically driven, chiral symmetric quantum wire
Oct 7, 2014 Aurél Gábris Simulating the localized---non-localized transition with quantum walks
Oct 2, 2014 András Gilyén Quantum speedup of the Markov chain based search - an algorithmic approach of quantum walks
Sep 23, 2014 Orsolya Kálmán Radiofrequency outcoupling from BEC
Sep 16, 2014 Gábor Kónya Self organization in double cavity
Sep 9, 2014 Péter Sinkovicz Return time in discrete time quantum walks (progress report)
Sep 1, 2014 Dandan Su Interacting bosons in an optical cavity
Aug 26, 2014 Ulrike Herzog Optimal strategies for the discrimination of quantum states
Jun 17, 2014 Yutaka Shikano Highly dense excition-polariton system in semiconductor microcavity
Jun 17, 2014 Yutaka Shikano Solid-state implementation of quantum walk
Jun 12, 2014 Alicia Kollár Exploring strongly correlated matter with multimode cavity QED
Jun 3, 2014 Robert Thijs Kozma Limiting behavior of Julia sets of perturbed quadratic maps
May 29, 2014 Chi-Hung Weng A study of the 1D Aubry-André-Harper (AAH) models and its topological properties
May 20, 2014 László Ujfalusi Quantum percolation transition in 3d: density of states, finite size scaling, and multifractality
May 15, 2014 Viktor Ayadi Analysis of integrable many-body systems using Hamiltonian symmetry reduction method
Apr 29, 2014 Márton Kormos Termalization in isolated quantum systems: the one-dimensional Bose gas
Apr 1, 2014 András Pályi Electrically driven spin resonance in quantum dots
Mar 25, 2014 Gergely Szirmai Repulsive self-trapping in a bosonic Josephson Junction with a potential dip in the middle
Mar 11, 2014 János Asbóth Chiral symmetry and Majorana fermions in periodically driven quantum wires
Feb 25, 2014 András Vukics Elimination of the A2 problem from cavity quantum electrodynamics
Feb 18, 2014 Márton Kanász-Nagy Theory of confinement-induced interlayer molecular resonances
Feb 13, 2014 Jaroslav Novotny & Jirka Maryska Asymptotics of iterated quantum evolution
Jan 21, 2014 David Dasenbrook Electron Waiting Times in Quantum-Coherent Conductors
Jan 14, 2014 Péter Sinkovicz Return time in discrete time quantum walks
Jan 7, 2014 Viktor Eisler Violation of the area law in non-equilibrium steady states
Dec 17, 2013 Zoltán Bodrog Reading of a single erbium defect by optoelectronic method (Journal club)
Dec 12, 2013 Benjamin Rousseaux Quantum control at the nanoscale – Arbitrary qudit gates by adiabatic passage
Nov 26, 2013 Róbert Juhász Electric Quantum Walks (Journal club)
Nov 25, 2013 János Asbóth Topological phases of quantum walks via scattering matrices
Nov 21, 2013 Sandeep K. Goyal Scalable implementation scheme for quantum walks using classical light
Nov 19, 2013 Péter Sinkovicz The N-flavour Heisenberg modell (and what is behind)
Nov 7, 2013 Luca Salasnich Time-dependent density functional of the Fermi gas in the BCS-BEC crossover
Nov 5, 2013 Giovanni Mazzarella Ultracold atomic bosons in double- and triple-well potentials
Nov 3, 2013 Gábor Kónya Damping of the soft polariton mode of a Bose–Einstein condensate in an optical cavity
Oct 22, 2013 Thomas Konrad The emergence of classicality from continuous observation (at the example of a BEC)
Oct 17, 2013 Zoltán Darázs Parametric amplification of the mechanical vibrations of a suspended nanowire by magnetic coupling to a Bose-Einstein condensate
Oct 15, 2013 Karlo Penc Artificial spin ice (Journal club)
Oct 8, 2013 Raimar Sandner Subrecoil cavity cooling towards degeneracy: a numerical study
Oct 8, 2013 Brian Tarasinski Measuring topological invariants in quantum walks
Sep 25, 2013 Peter Domokos Quantum noise in light-matter interaction (inaugural speech)
Sep 10, 2013 János Asbóth Hofstadter buttefly detected in graphene (Journal club)
Sep 3, 2013 Hideaki Obuse Network model for 2D and 3D Z2 topological insulators and its relation to quantum walks
Sep 2, 2013 János Asbóth Edge states in 2D quantum walks
Jul 29, 2013 Géza Tóth Spin-squeezing inequalities for entanglement detection
Jul 9, 2013 Zsolt Kis Contribution of the Hanbury Brown–Twiss experiment to the development of quantum optics
Jun 27, 2013 Jonathan Edge Metallic phase of the quantum Hall effect in four-dimensional space
Jun 25, 2013 Bálint Kollár Entropy rate in quantum walks
Jun 18, 2013 Tamás Kiss Journal Club: Quantum Thermodynamics
Jun 18, 2013 Örs Legeza Journal Club: Topological Order through Entanglement Entropy
Jun 11, 2013 András Vukics Elimination of the A2 term in CQED
May 28, 2013 András Dombi Quantum-semiclassical transition of optical bistability
May 20, 2013 – May 23, 2013 Artificial Atoms: from Quantum Physics to Applications
May 14, 2013 Zoltán Kurucz Finding parametric amplification conditions in a system with inhomogeneous broadening
May 7, 2013 János Asbóth Journal club
Apr 30, 2013 Zoltán Kurucz Parametric amplification of nanotube vibrations by magnetic coupling to a Bose–Einstein condensate
Apr 26, 2013 Stefan Filipp Circuit QED—Quantum Optics with Microwave Photons and Superconducting Circuits on a Chip (part III)
Apr 25, 2013 Stefan Filipp Circuit QED—Quantum Optics with Microwave Photons and Superconducting Circuits on a Chip (part II)
Apr 24, 2013 Stefan Filipp Circuit QED—Quantum Optics with Microwave Photons and Superconducting Circuits on a Chip (part I)
Apr 9, 2013 Jenő Sólyom Journal Club: Spin Liquids
Mar 26, 2013 Árpád Lukács Tracktor beam: Is negative radiation pressure possible?
Mar 19, 2013 Oliver Mülken Exciton Dynamics in Open Quantum Systems—from Quantum to Random Walks
Mar 12, 2013 Zoltán Darázs Parametric amplification of nanotube vibrations by magnetic coupling to a Bose–Einstein condensate
Mar 5, 2013 Zsolt Kis Pulse propagation in a dressed, degenerate system
Feb 19, 2013 János Asbóth Journal club
Feb 19, 2013 Peter Domokos Journal club
Feb 12, 2013 Gergely Szirmai Conference report
Jan 22, 2013 Zoltán Kurucz Relation between entanglement and squeezing in spin ensembles
Jan 15, 2013 Zoltán Scherübl Entanglement of broken Cooper pairs
Jan 4, 2013 Gábor Halász Mobile defects in the hexagonal Kitaev model
Jan 4, 2013 Péter Kómár Optomechanics with several photon modes
Dec 6, 2012 Jan Dahlhaus Transport signatures of topological superconducting wires
Dec 4, 2012 Jan Dahlhaus Topological phase transitions in quantum kicked rotators
Nov 28, 2012 István Kovács Universal behaviour of entanglement entropy by the example of quantum Ising model
Nov 13, 2012 Peter Domokos Quantum mechanics put to work (the Nobel prize in physics 2012)
Oct 30, 2012 Péter Sinkovicz Description of spin-liquid phase on hexagonal lattice
Oct 16, 2012 János Asbóth Chiral symmetry of quantum walks
Oct 9, 2012 Gábor Kónya Finite-size scaling in the quantum phase transition of the open-system Dicke-model
Oct 2, 2012 Dávid Nagy Matter-Wave Optomechanics
Sep 25, 2012 Bálint Kollár Entropy rate in quantum walks
Sep 18, 2012 Gábor Kónya Entanglement in mixed states
Jun 1, 2012 Barry Sanders Coin quantum walks in ion traps and in superconducting circuit quantum electrodynamics
May 28, 2012 – May 30, 2012 Pécs Workshop on Quantum Information and Quantum Optics
May 22, 2012 Edit Mátyus Molekulaszerkezet-számítás a Born--Oppenheimer-közelítés nélkül
May 15, 2012 Zoltán Kurucz Hybrid quantum memory (journal club)
May 8, 2012 Tobias Griesser Kinetic Theory of Cavity Cooling and Selforganization
May 3, 2012 – May 7, 2012 Workshop on the dynamics and asymptotics in the Dicke model and quantum networks
Apr 24, 2012 Gábor Czakó Quasiclassical trajectory computations on ab initio potential energy surfaces
Apr 17, 2012 Viktor Szalay Variational properties of the discrete variable representation: Discrete variable representation via effective operators. Part 2.
Apr 10, 2012 János Asbóth Topological phases with ultracold atoms
Mar 27, 2012 János Asbóth Edge states in quantum walks
Mar 20, 2012 Zoltán Darázs Time evolution of the continuous-time quantum walk on a percolated graph
Mar 13, 2012 János Asbóth Edge states in discrete time quantum walks
Feb 28, 2012 Zsolt Kis Coherent Control in Quantum Dots
Feb 21, 2012 Viktor Szalay Variational properties of the discrete variable representation: Discrete variable representation via effective operators
Feb 7, 2012 Peter Domokos Cavity Optomechanics á la DSK
Jan 31, 2012 László Oroszlány Carbon nanotube quantum pumps
Jan 24, 2012 Gergely Szirmai Langevin equation of collective modes of Bose-Einstein condensates
Jan 17, 2012 János Asbóth Edge states in particle-hole-symmetric quantum walks
Jan 10, 2012 Bálint Kollár Quantum walks and percolation
Jan 3, 2012 András Pályi Spin-orbit induced strong coupling of a single spin to a nanomechanical resonator
Dec 13, 2011 András Vukics Can the Dicke model be realized in atomic systems? (part 2)
Dec 2, 2011 Mark Rudner Topological transitions in driven quantum systems
Nov 29, 2011 Anastasiia Anishchenko Enhanced spreading of quantum walks on star graphs by additional bonds
Nov 22, 2011 Tamás Kiss Open quantum systems: quantum discord and entanglement
Nov 15, 2011 Gábor Kónya Multimode mean-field model for the quantum phase transition of a Bose-Einstein condensate in an optical resonator
Oct 25, 2011 András Vukics Can the Dicke model be realized in atomic systems?
Oct 10, 2011 Balázs Dóra Lattice generalization of the Dirac equation to general spin and the role of the flat band
Oct 4, 2011 Zoltán Kurucz Interaction between light and spin systems
Sep 27, 2011 Zsolt Kis Adiabatic Floquet theory
Sep 20, 2011 Dávid Nagy Role of collisions in BEC-cavity interaction
Sep 13, 2011 Gergely Szirmai Hydrodynamics
Sep 9, 2011 Craig Hamilton Quantum Walk with a Four Dimensional Coin
Jul 8, 2002 – Jul 12, 2002 The Wigner Centennial Conference
Apr 28, 2000 – May 1, 2000 7th Central European Workshop on Quantum Optics
Jul 2, 1999 – Jul 6, 1999 8th International Laser Physics Workshop