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Quantum Emitters in non-conventional baths

Total Cost €


EC-Contrib. €






Project "QUENOCOBA" data sheet

The following table provides information about the project.


Organization address
city: Munich
postcode: 80539

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Germany [DE]
 Total cost 1˙872˙968 €
 EC max contribution 1˙872˙968 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2016-ADG
 Funding Scheme ERC-ADG
 Starting year 2017
 Duration (year-month-day) from 2017-09-01   to  2022-08-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 


 Project objective

The coupling of quantum emitters to a common bath gives rise to intriguing quantum optical phenomena, like super-radiance, non-Markovian dynamics, or dipole-dipole interactions. In recent years, new experimental setups are emerging where non-conventional baths, with tailored dispersion relations, can be produced. In particular, atoms (the emitters) can be kept in the proximity of photonic crystals (the bath), whose properties can be engineered thanks to the spectacular progress experienced in nano-fabrication techniques. Low dimensional mate- rials, dispersion relations with Dirac points, or exotic topological features can be designed in photonic crystals, which will dramatically affect the behavior of the emitters. In this scenario, exotic phenomena, unique possibilities for quantum simulation of both coherent and dissipa- tive dynamics, as well as advanced applications are expected to appear. Presently, a new research area is emerging to investigate the physics of emitters coupled to non- conventional baths.

In this project we will: (i) develop the theoretical tools required to investigate this new area; (ii) explore and characterize novel phenomena; and (iii) propose and analyze other physical setups where those phenomena can be observed and exploited (in the context of quantum information and simulation). The research will involve the development of innovative tech- niques to describe new scenarios in quantum optics and many-body physics, as well as re- search on atoms interacting with photonic crystals, in optical lattices, and quantum dots in- teracting with surface acoustic waves.

This interdisciplinary project involves concepts and ideas from quantum optics, many-body quantum physics, and quantum information, research fields where the PI has a vast experi- ence. This, together with a close collaboration with leading experimentalists will provide us with a unique environment for the successful accomplishment of the objectives of the project.


year authors and title journal last update
List of publications.
2018 T Shi, Y-H Wu, A González-Tudela, J I Cirac
Effective many-body Hamiltonians of qubit-photon bound states
published pages: 105005, ISSN: 1367-2630, DOI: 10.1088/1367-2630/aae4a9
New Journal of Physics 20/10 2020-04-15
2018 A. González-Tudela, J. I. Cirac
Exotic quantum dynamics and purely long-range coherent interactions in Dirac conelike baths
published pages: , ISSN: 2469-9926, DOI: 10.1103/physreva.97.043831
Physical Review A 97/4 2020-04-15
2019 Giuseppe Carleo, Kenny Choo, Damian Hofmann, James E.T. Smith, Tom Westerhout, Fabien Alet, Emily J. Davis, Stavros Efthymiou, Ivan Glasser, Sheng-Hsuan Lin, Marta Mauri, Guglielmo Mazzola, Christian B. Mendl, Evert van Nieuwenburg, Ossian O’Reilly, Hugo Théveniaut, Giacomo Torlai, Filippo Vicentini, Alexander Wietek
NetKet: A machine learning toolkit for many-body quantum systems
published pages: 100311, ISSN: 2352-7110, DOI: 10.1016/j.softx.2019.100311
SoftwareX 10 2020-04-01
2019 Antoine Tilloy, J. Ignacio Cirac
Continuous Tensor Network States for Quantum Fields
published pages: , ISSN: 2160-3308, DOI: 10.1103/PhysRevX.9.021040
Physical Review X 9/2 2020-04-01
2019 Javier Argüello-Luengo, Alejandro González-Tudela, Tao Shi, Peter Zoller, J. Ignacio Cirac
Analogue quantum chemistry simulation
published pages: 215-218, ISSN: 0028-0836, DOI: 10.1038/s41586-019-1614-4
Nature 574/7777 2020-04-01
2019 Claudius Hubig, J. Ignacio Cirac
Time-dependent study of disordered models with infinite projected entangled pair states
published pages: , ISSN: 2542-4653, DOI: 10.21468/SciPostPhys.6.3.031
SciPost Physics 6/3 2020-04-01
2019 M. Bello, G. Platero, J. I. Cirac, A. González-Tudela
Unconventional quantum optics in topological waveguide QED
published pages: eaaw0297, ISSN: 2375-2548, DOI: 10.1126/sciadv.aaw0297
Science Advances 5/7 2020-04-01
2019 Bañuls, Mari Carmen; Cichy, Krzysztof; Cirac, J. Ignacio; Jansen, Karl; Kühn, Stefan
Tensor Networks and their use for Lattice Gauge Theories
published pages: , ISSN: , DOI: 10.3204/PUBDB-2019-00009
15 pp. (2018). doi:10.3204/PUBDB-2019-00009 2 2020-04-01
2019 Sebastian Paeckel, Thomas Köhler, Andreas Swoboda, Salvatore R. Manmana, Ulrich Schollwöck, Claudius Hubig
Time-evolution methods for matrix-product states
published pages: 167998, ISSN: 0003-4916, DOI: 10.1016/j.aop.2019.167998
Annals of Physics 411 2020-04-01
2019 I. Hagymási, C. Hubig, Ö. Legeza, U. Schollwöck
Dynamical Topological Quantum Phase Transitions in Nonintegrable Models
published pages: , ISSN: 0031-9007, DOI: 10.1103/PhysRevLett.122.250601
Physical Review Letters 122/25 2020-04-01
2019 M. J. A. Schuetz, B. Vermersch, G. Kirchmair, L. M. K. Vandersypen, J. I. Cirac, M. D. Lukin, P. Zoller
Quantum simulation and optimization in hot quantum networks
published pages: , ISSN: 2469-9950, DOI: 10.1103/PhysRevB.99.241302
Physical Review B 99/24 2020-04-01
2019 A. González-Tudela, J. I. Cirac
Cold atoms in twisted-bilayer optical potentials
published pages: , ISSN: 2469-9926, DOI: 10.1103/PhysRevA.100.053604
Physical Review A 100/5 2020-04-01
2019 V. Paulisch, M. Perarnau-Llobet, A. González-Tudela, J. I. Cirac
Quantum metrology with one-dimensional superradiant photonic states
published pages: , ISSN: 2469-9926, DOI: 10.1103/physreva.99.043807
Physical Review A 99/4 2020-04-01
2019 L. Stenzel, A. L. C. Hayward, C. Hubig, U. Schollwöck, F. Heidrich-Meisner
Quantum phases and topological properties of interacting fermions in one-dimensional superlattices
published pages: , ISSN: 2469-9926, DOI: 10.1103/PhysRevA.99.053614
Physical Review A 99/5 2020-04-01
2019 Daniel Malz, Johannes Knolle, Andreas Nunnenkamp
Topological magnon amplification
published pages: , ISSN: 2041-1723, DOI: 10.1038/s41467-019-11914-2
Nature Communications 10/1 2020-04-01
2019 A. González-Tudela, C. Sánchez Muñoz, J. I. Cirac
Engineering and Harnessing Giant Atoms in High-Dimensional Baths: A Proposal for Implementation with Cold Atoms
published pages: , ISSN: 0031-9007, DOI: 10.1103/PhysRevLett.122.203603
Physical Review Letters 122/20 2020-04-01
2019 Glasser, Ivan; Sweke, Ryan; Pancotti, Nicola; Eisert, Jens; Cirac, J. Ignacio
Expressive power of tensor-network factorizations for probabilistic modeling, with applications from hidden Markov models to quantum machine learning
published pages: , ISSN: , DOI:
1 2020-04-01
2019 Erez Zohar, J. Ignacio Cirac
Removing staggered fermionic matter in U ( N ) and S U ( N ) lattice gauge theories
published pages: , ISSN: 2470-0010, DOI: 10.1103/PhysRevD.99.114511
Physical Review D 99/11 2020-04-01
2019 E. Sánchez-Burillo, L. Martín-Moreno, J. J. García-Ripoll, D. Zueco
Single Photons by Quenching the Vacuum
published pages: , ISSN: 0031-9007, DOI: 10.1103/PhysRevLett.123.013601
Physical Review Letters 123/1 2020-04-01
2019 Christoph Sünderhauf, Lorenzo Piroli, Xiao-Liang Qi, Norbert Schuch, J. Ignacio Cirac
Quantum chaos in the Brownian SYK model with large finite N : OTOCs and tripartite information
published pages: , ISSN: 1029-8479, DOI: 10.1007/JHEP11(2019)038
Journal of High Energy Physics 2019/11 2020-04-01
2019 Tommaso Guaita, Lucas Hackl, Tao Shi, Claudius Hubig, Eugene Demler, J. Ignacio Cirac
Gaussian time-dependent variational principle for the Bose-Hubbard model
published pages: , ISSN: 2469-9950, DOI: 10.1103/PhysRevB.100.094529
Physical Review B 100/9 2020-04-01
2019 Yuto Ashida, Tao Shi, Richard Schmidt, H. R. Sadeghpour, J. Ignacio Cirac, Eugene Demler
Efficient variational approach to dynamics of a spatially extended bosonic Kondo model
published pages: , ISSN: 2469-9926, DOI: 10.1103/PhysRevA.100.043618
Physical Review A 100/4 2020-04-01
2020 Claudius Hubig, Annabelle Bohrdt, Michael Knap, Fabian Grusdt, Ignacio Cirac
Evaluation of time-dependent correlators after a local quench in iPEPS: hole motion in the t-J model
published pages: , ISSN: 2542-4653, DOI: 10.21468/scipostphys.8.2.021
SciPost Physics 8/2 2020-04-01
2019 David Sauerwein, Andras Molnar, J. Ignacio Cirac, Barbara Kraus
Matrix Product States: Entanglement, Symmetries, and State Transformations
published pages: , ISSN: 0031-9007, DOI: 10.1103/PhysRevLett.123.170504
Physical Review Letters 123/17 2020-04-01
2019 Shomroni, Itay; Youssefi, Amir; Sauerwein, Nick; Qiu, Liu; Seidler, Paul; Malz, Daniel; Nunnenkamp, Andreas; Kippenberg, Tobias J
Two-Tone Optomechanical Instability and Its Fundamental Implications for Backaction-Evading Measurements
published pages: American Physica, ISSN: 2160-3308, DOI: 10.17863/CAM.43531
Physical Review X 1 2020-04-01
2019 Yuto Ashida, Tao Shi, Richard Schmidt, H. R. Sadeghpour, J. Ignacio Cirac, Eugene Demler
Quantum Rydberg Central Spin Model
published pages: , ISSN: 0031-9007, DOI: 10.1103/PhysRevLett.123.183001
Physical Review Letters 123/18 2020-04-01
2019 Juan Ignacio Cirac, José Garre-Rubio, David Pérez-García
Mathematical open problems in projected entangled pair states
published pages: 579-599, ISSN: 1139-1138, DOI: 10.1007/s13163-019-00318-x
Revista Matemática Complutense 32/3 2020-04-01
2019 Brunelli, Matteo; Malz, Daniel; Nunnenkamp, Andreas
Conditional dynamics of optomechanical two-tone backaction-evading measurements
published pages: , ISSN: 1079-7114, DOI: 10.17863/CAM.44935
Physical Review Letters 3 2020-04-01
2020 Nils-Oliver Linden, Manuel Zingl, Claudius Hubig, Olivier Parcollet, Ulrich Schollwöck
Imaginary-time matrix product state impurity solver in a real material calculation: Spin-orbit coupling in Sr 2 RuO 4
published pages: , ISSN: 2469-9950, DOI: 10.1103/physrevb.101.041101
Physical Review B 101/4 2020-04-01
2019 Stefan Kuehn, Pablo Sala, Tao Shi, Mari Carmen Banuls, Eugene Demler, Juan Ignacio Cirac
Gaussian states for the variational study of (1+1)-dimensional lattice gauge models
published pages: 230, ISSN: , DOI: 10.22323/1.334.0230
Proceedings of The 36th Annual International Symposium on Lattice Field Theory — PoS(LATTICE2018) 2020-04-01
2019 Teresa E. Reinhard, Uliana Mordovina, Claudius Hubig, Joshua S. Kretchmer, Ulrich Schollwöck, Heiko Appel, Michael A. Sentef, Angel Rubio
Density-Matrix Embedding Theory Study of the One-Dimensional Hubbard–Holstein Model
published pages: 2221-2232, ISSN: 1549-9618, DOI: 10.1021/acs.jctc.8b01116
Journal of Chemical Theory and Computation 15/4 2020-04-01
2020 Zongping Gong, Christoph Sünderhauf, Norbert Schuch, J. Ignacio Cirac
Classification of Matrix-Product Unitaries with Symmetries
published pages: , ISSN: 0031-9007, DOI: 10.1103/physrevlett.124.100402
Physical Review Letters 124/10 2020-04-01
2018 Yuto Ashida, Tao Shi, Mari Carmen Bañuls, J. Ignacio Cirac, Eugene Demler
Variational principle for quantum impurity systems in and out of equilibrium: Application to Kondo problems
published pages: , ISSN: 2469-9950, DOI: 10.1103/PhysRevB.98.024103
Physical Review B 98/2 2019-06-11
2018 V. Paulisch, H. J. Kimble, J. I. Cirac, A. González-Tudela
Generation of single- and two-mode multiphoton states in waveguide QED
published pages: , ISSN: 2469-9926, DOI: 10.1103/PhysRevA.97.053831
Physical Review A 97/5 2019-06-11
2018 Christoph Sünderhauf, David Pérez-García, David A. Huse, Norbert Schuch, J. Ignacio Cirac
Localization with random time-periodic quantum circuits
published pages: , ISSN: 2469-9950, DOI: 10.1103/physrevb.98.134204
Physical Review B 98/13 2019-06-11
2018 Márton Kanász-Nagy, Yuto Ashida, Tao Shi, Cătălin Paşcu Moca, Tatsuhiko N. Ikeda, Simon Fölling, J. Ignacio Cirac, Gergely Zaránd, Eugene A. Demler
Exploring the anisotropic Kondo model in and out of equilibrium with alkaline-earth atoms
published pages: , ISSN: 2469-9950, DOI: 10.1103/PhysRevB.97.155156
Physical Review B 97/15 2019-06-11
2018 Claudius Hubig
Abelian and non-abelian symmetries in infinite projected entangled pair states
published pages: , ISSN: 2542-4653, DOI: 10.21468/scipostphys.5.5.047
SciPost Physics 5/5 2019-06-03
2018 Tao Shi, Eugene Demler, J. Ignacio Cirac
Variational study of fermionic and bosonic systems with non-Gaussian states: Theory and applications
published pages: 245-302, ISSN: 0003-4916, DOI: 10.1016/j.aop.2017.11.014
Annals of Physics 390 2019-06-03
2019 I. Hagymási, C. Hubig, U. Schollwöck
Interaction quench and thermalization in a one-dimensional topological Kondo insulator
published pages: , ISSN: 2469-9950, DOI: 10.1103/physrevb.99.075145
Physical Review B 99/7 2019-06-03
2018 B. Vermersch, A. Elben, M. Dalmonte, J. I. Cirac, P. Zoller
Unitary n -designs via random quenches in atomic Hubbard and spin models: Application to the measurement of Rényi entropies
published pages: , ISSN: 2469-9926, DOI: 10.1103/physreva.97.023604
Physical Review A 97/2 2019-06-03
2018 Erez Zohar, J. Ignacio Cirac
Combining tensor networks with Monte Carlo methods for lattice gauge theories
published pages: , ISSN: 2470-0010, DOI: 10.1103/PhysRevD.97.034510
Physical Review D 97/3 2019-06-03
2018 J. Knörzer, M. J. A. Schuetz, G. Giedke, H. Huebl, M. Weiler, M. D. Lukin, J. I. Cirac
Solid-state magnetic traps and lattices
published pages: , ISSN: 2469-9950, DOI: 10.1103/physrevb.97.235451
Physical Review B 97/23 2019-06-03
2018 Yuto Ashida, Tao Shi, Mari Carmen Bañuls, J. Ignacio Cirac, Eugene Demler
Solving Quantum Impurity Problems in and out of Equilibrium with the Variational Approach
published pages: , ISSN: 0031-9007, DOI: 10.1103/PhysRevLett.121.026805
Physical Review Letters 121/2 2019-06-03
2018 Henrik Dreyer, J. Ignacio Cirac, Norbert Schuch
Projected entangled pair states with continuous virtual symmetries
published pages: , ISSN: 2469-9950, DOI: 10.1103/PhysRevB.98.115120
Physical Review B 98/11 2019-06-03
2018 Julian Bender, Erez Zohar, Alessandro Farace, J Ignacio Cirac
Digital quantum simulation of lattice gauge theories in three spatial dimensions
published pages: 93001, ISSN: 1367-2630, DOI: 10.1088/1367-2630/aadb71
New Journal of Physics 20/9 2019-06-03
2019 Alejandro González-Tudela, Fernando Galve
Anisotropic Quantum Emitter Interactions in Two-Dimensional Photonic-Crystal Baths
published pages: 221-229, ISSN: 2330-4022, DOI: 10.1021/acsphotonics.8b01455
ACS Photonics 6/1 2019-06-03
2017 A. González-Tudela, J. I. Cirac
Markovian and non-Markovian dynamics of quantum emitters coupled to two-dimensional structured reservoirs
published pages: , ISSN: 2469-9926, DOI: 10.1103/physreva.96.043811
Physical Review A 96/4 2019-06-03
2018 Benedikt Herwerth, Germán Sierra, J. Ignacio Cirac, Anne E. B. Nielsen
Bosonic Gaussian states from conformal field theory
published pages: , ISSN: 2469-9950, DOI: 10.1103/PhysRevB.98.115156
Physical Review B 98/11 2019-06-03
2018 Andras Molnar, José Garre-Rubio, David Pérez-García, Norbert Schuch, J Ignacio Cirac
Normal projected entangled pair states generating the same state
published pages: 113017, ISSN: 1367-2630, DOI: 10.1088/1367-2630/aae9fa
New Journal of Physics 20/11 2019-06-03
2018 Nicola Pancotti, Michael Knap, David A. Huse, J. Ignacio Cirac, Mari Carmen Bañuls
Almost conserved operators in nearly many-body localized systems
published pages: , ISSN: 2469-9950, DOI: 10.1103/PhysRevB.97.094206
Physical Review B 97/9 2019-06-03
2019 Yimin Ge, Jordi Tura, J. Ignacio Cirac
Faster ground state preparation and high-precision ground energy estimation with fewer qubits
published pages: 22202, ISSN: 0022-2488, DOI: 10.1063/1.5027484
Journal of Mathematical Physics 60/2 2019-06-03
2018 Erez Zohar, J. Ignacio Cirac
Eliminating fermionic matter fields in lattice gauge theories
published pages: , ISSN: 2469-9950, DOI: 10.1103/PhysRevB.98.075119
Physical Review B 98/7 2019-06-03
2018 D. E. Chang, J. S. Douglas, A. González-Tudela, C.-L. Hung, H. J. Kimble
Colloquium : Quantum matter built from nanoscopic lattices of atoms and photons
published pages: , ISSN: 0034-6861, DOI: 10.1103/revmodphys.90.031002
Reviews of Modern Physics 90/3 2019-06-03
2018 Ivan Glasser, Nicola Pancotti, Moritz August, Ivan D. Rodriguez, J. Ignacio Cirac
Neural-Network Quantum States, String-Bond States, and Chiral Topological States
published pages: , ISSN: 2160-3308, DOI: 10.1103/PhysRevX.8.011006
Physical Review X 8/1 2019-06-03
2018 Vedran Dunjko, Yimin Ge, J. Ignacio Cirac
Computational Speedups Using Small Quantum Devices
published pages: , ISSN: 0031-9007, DOI: 10.1103/physrevlett.121.250501
Physical Review Letters 121/25 2019-06-03
2018 A. González-Tudela, J. I. Cirac
Non-Markovian Quantum Optics with Three-Dimensional State-Dependent Optical Lattices
published pages: 97, ISSN: 2521-327X, DOI: 10.22331/q-2018-10-01-97
Quantum 2 2019-06-03
2018 A. Elben, B. Vermersch, M. Dalmonte, J. I. Cirac, P. Zoller
Rényi Entropies from Random Quenches in Atomic Hubbard and Spin Models
published pages: , ISSN: 0031-9007, DOI: 10.1103/physrevlett.120.050406
Physical Review Letters 120/5 2019-06-03
2018 P. Sala, T. Shi, S. Kühn, M. C. Bañuls, E. Demler, J. I. Cirac
Variational study of U(1) and SU(2) lattice gauge theories with Gaussian states in 1 + 1 dimensions
published pages: , ISSN: 2470-0010, DOI: 10.1103/PhysRevD.98.034505
Physical Review D 98/3 2019-06-03
2017 A. González-Tudela, J. I. Cirac
Quantum Emitters in Two-Dimensional Structured Reservoirs in the Nonperturbative Regime
published pages: , ISSN: 0031-9007, DOI: 10.1103/physrevlett.119.143602
Physical Review Letters 119/14 2019-06-03

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