## Contact

Swiss National Science Foundation (SNSF)

Wildhainweg 3P.O. Box

CH-3001 Bern

Phone +41 31 308 22 22

Applicant | Schmidt Sebastian |
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Number | 142539 |

Funding scheme | Ambizione |

Research institution | Institut für Theoretische Physik ETH Zürich |

Institution of higher education | ETH Zurich - ETHZ |

Main discipline | Theoretical Physics |

Start/End | 01.09.2012 - 31.08.2015 |

Approved amount | 381'510.00 |

Light-matter interactions; Non-equilibrium phase transitions; Cavity/Circuit QED; Condensed matter; Mesoscopic quantum optics; Strongly correlated photons; Coupled-cavity arrays

Lead |
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Lay summary |

In this project we study strongly correlated photons in coupled cavity/waveguide QED architectures. We consider two different aspects: (i) mesoscopic photon transport and (ii) phase transitions and exotic states of light. In the first part we investigate the scattering of photons in resonators and waveguides at experimentally controllable impurities, e.g., atoms, quantum dots, or Kerr materials. We intent to develop efficient building blocks for quantum networks with applications in quantum information science (quantum computing). In the second part we investigate many-body states of photonic quasiparticles, e.g., cavity-polaritons and Kondo-excitons. Our major focus is on the question how to engineer exotic, strongly correlated and collective states of light through targeted interaction with bosonic or fermionic reservoirs (reservoir engineering). The aim in both projects is to develop new methods, that enable us to investigate the effect of pump and decoherence on strongly correlated scattering and many-body states of light. |

Direct link to Lay Summary | Last update: 21.02.2013 |

Name | Institute |
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Name | Institute |
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Publication |
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Incompressible Polaritons in a Flat Band |

Tunable, nonlinear Hong-Ou-Mandel interferometer |

Observation of a Dissipation-Induced Classical to Quantum Transition |

Quantum-Limited Amplification and Entanglement in Coupled Nonlinear Resonators |

Self-protected polariton states in photonic quantum metamaterials |

Circuit QED lattices: Towards quantum simulation with superconducting circuits |

Dispersive regime of the Jaynes-Cummings and Rabi lattice |

From the Jaynes-Cummings-Hubbard to the Dicke model |

Group / person | Country |
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Types of collaboration |
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Prof. Jacqueline Bloch | France (Europe) |

- in-depth/constructive exchanges on approaches, methods or results - Publication |

Prof. Hakan Tureci | United States of America (North America) |

- in-depth/constructive exchanges on approaches, methods or results - Publication |

Prof. Gianni Blatter | Switzerland (Europe) |

- Publication |

Prof. Jonathan Keeling | Great Britain and Northern Ireland (Europe) |

- Publication |

Prof. Jens Koch | United States of America (North America) |

- Publication |

Prof. Andrew Houck | United States of America (North America) |

- Publication |

Prof. Andreas Wallraff | Switzerland (Europe) |

- Publication |

Title | Type of contribution | Title of article or contribution | Date | Place | Persons involved |
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600. WE-Heraeus Seminar: Fontiers of Quantum optics | Talk given at a conference | Non-equilibrium many-body physics with strongly correlated photons | 26.10.2015 | Bad Honnef, Germany | Schmidt Sebastian; |

Theoretisch-Physikalisches Kolloquium, ETH Zurich | Individual talk | Interacting photonic lattices: from weak to strong correlations | 19.10.2015 | Zurich, Switzerland | Schmidt Sebastian; |

Charge transfer meets circuit QED | Talk given at a conference | Frustrated photonic lattices | 29.06.2015 | Dresden, Germany | Schmidt Sebastian; |

Quantum metamaterials | Talk given at a conference | Strongly correlated quantum metamaterials | 01.06.2015 | Spetses Island, Greece | Schmidt Sebastian; |

Strongly correlated fluids of light and matter | Talk given at a conference | Towards quantum simulation with circuit QED lattices | 13.01.2015 | Trento, Italy | Schmidt Sebastian; |

Quantum Computing Seminar, IBM Research | Individual talk | Quantum simulations in circuit QED | 03.12.2014 | Zurich, Switzerland | Schmidt Sebastian; |

Theoretisch-Physikalisches Kolloquium, ETH Zurich | Individual talk | Many-body physics with photons | 10.11.2014 | Zurich, Switzerland | Schmidt Sebastian; |

Condensed Matter in Paris | Talk given at a conference | Self-trapping of photons | 24.08.2014 | Paris, France | Schmidt Sebastian; |

Institute Seminar CNRS/LPN | Individual talk | Flat band physics with photons | 15.07.2014 | Paris, France | Schmidt Sebastian; |

New Horizons of strongly correlated physics | Talk given at a conference | Flat band physics with strongly correlated photons | 16.06.2014 | Tokyo, Japan | Schmidt Sebastian; |

DPG Fruehjahrstagung, Sektion Kondensierte Materie | Talk given at a conference | Self-trapping of photons | 30.03.2014 | Dresden, Germany | Schmidt Sebastian; |

DPG Fruehjahrstagung, Sektion AMOP | Talk given at a conference | Self-trapping of photons | 17.03.2014 | Berlin, Germany | Schmidt Sebastian; |

Theoretisch-Physikalisches Colloquium | Individual talk | Many-body physics with strongly correlated photons on a lattice | 25.11.2013 | University of Kaiserslautern, Germany | Schmidt Sebastian; |

Quantum Optics Seminar | Individual talk | Many-body physics with strongly correlated photons on a lattice | 06.08.2013 | Innsbruck, Austria | Schmidt Sebastian; |

Condensed Matter Seminar | Individual talk | Many-body Physics with Strongly Correlated Photons on a Lattice | 07.05.2013 | ICFO, Castelldefels, Spain | Schmidt Sebastian; |

Theoretical Physics Seminar | Individual talk | Strongly correlated photons on a lattice | 21.02.2013 | Ulm, Germany | Schmidt Sebastian; |

Condensed Matter Seminar | Individual talk | Quantum simulation with strongly correlated photons on a lattice | 31.01.2013 | Dresden, Germany | Schmidt Sebastian; |

Exotic Quantum States in Circuit QED Systems | Talk given at a conference | Circuit QED lattices | 01.11.2012 | Pohang, Korean Republic (South Korea) | Schmidt Sebastian; |

Current topics in the theory of correlated materials | Talk given at a conference | Non-equilibrium physics of strongly correlated photons | 10.09.2012 | Wako, Japan | Schmidt Sebastian; |

Number | Title | Start | Funding scheme |
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134286 | Phase transitions of light in coupled cavity/circuit QED systems | 01.11.2010 | International short research visits |

In this proposal we study strongly correlated photons in coupled cavity/waveguide QED architectures. We consider two different aspects: (i) mesoscopic photon transport and (ii) phase transitions and exotic states of light. In the ?rst part we investigate the scattering of photons in resonators and waveguides at experimentally controllable impurities, e.g., atoms, quantum dots, or Kerr materials. We intent to develop ef?cient building blocks for quantum networks with applications in quantum information science (quantum computing). In the second part we investigate many-body states of photonic quasiparticles, e.g., cavity-polaritons and Kondo-excitons. Our major focus is on the question how to engineer exotic, strongly correlated and collective states of light through targeted interaction with bosonic or fermionic reservoirs (reservoir engineering). The aim in both projects is to develop new methods, that enable us to investigate the effect of pump and decoherence on strongly correlated scattering and many-body states of light.

Swiss National Science Foundation (SNSF)

Wildhainweg 3P.O. Box

CH-3001 Bern

Phone +41 31 308 22 22

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