Superconductors; superfluids; cold atomic gases; vortex matter; classical and quantum phases transitions; disordered systems; mesoscopic systems; entanglement; quantum computing; classical and quantum phase transitions
M. Biondi S. Lienhard G. Blatter H.E. Türeci S. Schmidt (2017), Spatial correlations in driven-dissipative photonic lattices, in New Journal of Physics
, 19, 125016.
M.S. Ferguson D. Oehri C. Rössler Th. Ihn K. Ensslin G. Blatter O. Zilberberg (2017), Long-range spin coherence in a strongly coupled all-electronic dot-cavity system, in Physical Review B
, 96, 235431.
M. Roth M. Ganzhorn N. Moll S. Filipp G. Salis S. Schmidt (2017), Analysis of a parametrically driven exchange-type gate and a two-photon excitation gate between superconducting qubits, in Physical Review A
, 96, 062323.
A. U. Thomann V. B. Geshkenbein and G. Blatter (2017), Vortex dynamics in type-II superconductors under strong pinning conditions, in Physical Review B
, 96, 144516.
Matteo Biondi Gianni Blatter Hakan E. Türeci and Sebastian Schmidt (2017), Nonequilibrium gas-liquid transition in the driven-dissipative photonic lattice, in Physical Review A
, 96, 043809.
Dmitri A. Ivanov (2017), Computational complexity of exterior products and multiparticle amplitudes of noninteracting fermions in entangled states, in Physical Review A
, 96, 012322.
D. A. Ivanov and M. V. Feigel’man (2017), Low-energy dynamical response of an Anderson insulator with local attraction, in Physical Review B
, 95, 045147.
Sebastian Schmidt and Gianni Blatter (2017), Phase Diagram and Excitations of the Jaynes-Cummings-Hubbard Model, in D.G. Angelakis (ed.), 23.
A.V. Lebedev D. Oehri G.B. Lesovik and G. Blatter (2016), Trading coherence and entropy by a quantum Maxwell demon, in Physical Review A
, 94, 052133.
C. Rössler D. Oehri O. Zilberberg G. Blatter ... T. Ihn K. Ensslin C. Reichl W. Wegscheider (2016), Transport Spectroscopy of a Spin-Coherent Dot-Cavity System, in Physical Review Letters
, 115, 166603.
B. Gränz S.E. Korshunov V.B. Geshkenbein and G. Blatter (2016), Competing structures in two dimensions: Square-to-hexagonal transition, in Physical Review B
, 94, 054110.
Sebastian Schmidt (2016), Frustrated polaritons, in Physica Scripta
, 91, 073006.
A.V. Lebedev G.B. Lesovik and G. Blatter (2016), Optimal noninvasive measurement of full counting statistics by a single qubit, in Physical Review B
, 93, 115140.
R. Willa V. B. Geshkenbein and G. Blatter (2016), Probing the pinning landscape in type-II superconductors via Campbell penetration depth, in Physical Review B
, 93, 064515.
F. Baboux L. Ge T. Jacqmin M. Biondi ... S. Schmidt H. E. Türeci A. Amo and J. Bloch (2016), Bosonic Condensation and Disorder-Induced Localization in a Flat Band, in Physical Review Letters
, 116, 066402.
D. Oehri A.V. Lebedev G.B. Lesovik and G. Blatter (2016), Time correlators from deferred measurements, in Physical Review B
, 93, 045308.
R. Willa1 V. B. Geshkenbein1 R. Prozorov2 and G. Blatter1 (2015), Campbell Response in Type-II Superconductors under Strong Pinning Conditions, in Physical Review Letters
, 115, 207001.
M. Biondi E.P.L. van Nieuwenburg G. Blatter S.D. Huber and S. Schmid (2015), Incompressible Polaritons in a Flat Band, in Physical Review Letters
, 115, 143601.
R. Willa V. B. Geshkenbein and G. Blatter (2015), Campbell penetration in the critical state of type-II superconductors, in Physical Review B
, 92, 134501.
D. Oehri M. Pletyukhov V. Gritsev G. Blatter and S. Schmidt (2015), Tunable, nonlinear Hong-Ou-Mandel interferometer, in Physical Review A
, 91, 033816.
S. Butz A.K. Feofanov ... A.U. Thomann ... V.B. Geshkenbein G. Blatter A.V. Ustinov (2014), Flux-Dependent Crossover between Quantum and Classical Behavior in a dc SQUID, in Physical Review Letters
, 113, 247005.
C. Eichler Y. Salathe J. Mlynek S. Schmidt and A. Wallraff (2014), Quantum-Limited Amplification and Entanglement in Coupled Nonlinear Resonators, in Physical Review Letters
, 113, 110502.
J. Raftery D. Sadri S. Schmidt H. E. Türeci and A. A. Houck (2014), Observation of a Dissipation-Induced Classical to Quantum Transition, in Physical Review X
, 4, 031043.
D. Oehri A.V. Lebedev G.B. Lesovik and G. Blatter (2014), Projective versus weak measurement of charge in a mesoscopic conductor, in Physical Review B
, 90, 075312.
B. Gränz S.E. Korshunov V.B. Geshkenbein and G. Blatter (2014), Competing structures in two-dimensional trapped dipolar gases, in Physical Review B
, 90, 060101(R).
R. Willa V.B. Geshkenbein and G. Blatter (2014), Suppression of geometric barrier in type-II superconducting strips, in Physical Review B
, 89, 104514.
M. Biondi S. Schmidt G. Blatter and H.E. Türeci (2014), Self-protected polariton states in photonic quantum metamaterials, in Physical Review A
, 89, 025801.
A.V. Lebedev P. Treutlein and G. Blatter (2014), Sequential quantum-enhanced measurement with an atomic ensemble, in Physical Review A
, 89, 012118.
S. Schmidt G. Blatter and J. Keeling (2013), From the Jaynes–Cummings–Hubbard to the Dicke model, in Journal of Physics B: At. Mol. Opt. Phys.
, 46, 224020.
Sebastian Schmidt and Jens Koch (2013), Circuit QED lattices: Towards quantum simulation with superconducting circuits, in Annals of Physics
, 525, 395.
A.A. Vyshnevyy A.V. Lebedev G.B. Lesovik and G. Blatter (2013), Two-particle entanglement in capacitively coupled Mach-Zehnder interferometers, in Physical Review B
, 81, 165302.
S.E. Korshunov V.B. Geshkenbein and G. Blatter (2013), Finite Temperature Perturbation Theory for the Random Directed Polymer Problem, in Journal of Experimental and Theoretical Physics
, 117, 570.
P.J.W. Moll L. Balicas V. Geshkenbein G. Blatter J. Karpinski N.D. Zhigadlo B. Batlogg (2012), Transition from slow Abrikosov to fast moving Josephson vortices in iron pnictide superconductors, in Nature Materials
, 12, 134.
G.B. Lesovik, M.V. Suslov, G. Blatter (2010), Quantum counting algorithm and its application in mesoscopic physics, in Physical Review
I. A. Sadovskyy, G. B. Lesovik, G. Blatter, T. Jonckheere, T. Martin, Andreev quantum dot with several conducting channels, in Physical Review
F. Hassler, S.D. Huber, Coherent pumping of a Mott insulator: Fermi golden rule versus Rabi oscillations, in Physical Review
B. Surer, H.G. Katzgraber, G.T. Zimanyi, B.A. Allgood, G. Blatter, Density of States and Critical Behavior of the Coulomb Glass, in Physical Review
A.J. Hoffman, S.J. Srinivasan, S. Schmidt, L. Spietz, J. Aumentado, H.E. Türeci, A.A. Houck, Dispersive Photon Blockade in a Superconducting Circuit, in Physical Review
A.U. Thomann, V.B. Geshkenbein, G. Blatter, Dynamical Aspects of Strong Pinning of Magnetic Vortices in Type-II Superconductors, in Physical Review
M. Hohenadler, M. Aichhorn, S. Schmidt, L. Pollet, Dynamical critical exponent of the Jaynes-Cummings-Hubbard model, in Physical Review
A.V. Lebedev, G. Blatter, Dynamical Resurrection of the Visibility in a Mach-Zehnder Interferometer, in Physical Review
F. Hassler, A. Rüegg, M. Sigrist, G. Blatter, Dynamical Unbinding Transition in a Periodically Driven Mott Insulator, in Physical Review
S.D. Huber, A. Rüegg, Dynamically Generated Double Occupancy as a Probe of Cold Atom Systems, in Physical Review
S. Schmidt, G. Blatter, Excitations of Strongly Correlated Lattice Polaritons, in Physical Review
V.S. Dotsenko, V.B. Geshkenbein, D.A. Gorokhov, G. Blatter, Free-energy distribution functions for the randomly forced directed polymer, in Physical Review
F. Hassler, G.B. Lesovik, G. Blatter, Influence of a random telegraph process on the transport through a point contact, in The European Physical Journal
B. Küng, Th. Choi, O. Pfäffli, Th. Ihn, K. Ensslin, G. Blatter, M. Reinwald, S. Schön, Measurement Back-Action in Quantum Point-Contact Charge Sensing, in Entropy
S.D. Huber, G. Blatter, Mesoscopic aspects of strongly interacting cold atoms, in Physical Review
A.U. Thomann, V.B. Geshkenbein, G. Blatter, Münchhausen effect: tunneling in an asymmetric SQUID, in AIP Conference Proceedings
B. Küng, S. Gustavsson, T. Choi, I. Shorubalko, T. Ihn, S. Schön, F. Hassler, G. Blatter, K. Ensslin, Noise-induced spectral shift measured in a double quantum dot, in Physical Review
S. Schmidt, D. Gerace, A.A. Houck, G. Blatter, H.E. Türeci, Nonequilibrium delocalization-localization transition of photons in circuit quantum electrodynamics, in Physical Review
M. Hohenadler, M. Aichhorn, L. Pollet, S. Schmidt, Polariton Mott insulator with trapped ions or circuit QED, in Physical Review
M.V. Suslov, G.B. Lesovik, G. Blatter, Quantum abacus for counting and factorizing numbers, in Physical Review
A.U. Thomann, V.B. Geshkenbein, G. Blatter, Quantum instability in a dc SQUID with strongly asymmetric dynamical parameters, in PHYSICAL REVIEW
F. Hassler, B. Küng, G.B. Lesovik, G. Blatter, Single-Particle Excitations Generated by Voltage Pulses, in AIP Conference Proceedings
A.V. Lebedev, G.B. Lesovik, G. Blatter, Statistics of radiation emitted from a quantum point contact, in Physical Review
S. Schmidt, g. Blatter, Strong Coupling Theory for the Jaynes-Cummings-Hubbard Model, in Physical Review
B. Surer, A. Glatz, H.G. Katzgraber, G.T. Zimanyi, B.A. Allgood, G. Blatter, Surer et al. Reply, in Physical Review
We carry out theoretical studies on various types of solid state systems: on the one hand, these are quantum coherent systems such as superconducting metals, superfluid bosonic and fermionic gases, and quantum Josephson junction arrays. We are interested in novel phases and (quantum) phase transitions where these materials undergo a drastic change in behavior, e.g. ordered versus disordered or mobile versus immobile phases. Furthermore, we study topological excitations such as vortices and systems of vortices; these define an interesting soft-matter system with similarities to polymer physics. When subjected to quenched disorder, these systems exhibit highly non-trivial statistical (glassy) properties. These studies are useful in the context of applications of novel materials, e.g., superconducting transport.Our second field of interest is mesoscopic physics. Here we study theoretically the transport properties (average current, noise, full countingstatistics, etc.) in small mesoscopic devices (normal-metallic and/or superconducting) and study basic quantum phenomena such as entanglement generation, detection, and conversion, with the goal to understand their potential as devices for quantum information processing.