Articles

Theses

Book chapters


Articles (incl. preprints)


    2021


  1. Barbara Andrade, Zohreh Davoudi, Tobias Grass, Mohammad Hafezi, Guido Pagano, Alireza Seif:
    Engineering an Effective Three-spin Hamiltonian in Trapped-ion Systems for Applications in Quantum Simulation
    arXiv:2108.01022

  2. Utso Bhattarcharya, Tobias Grass, Adrian Bachtold, Maciej Lewenstein, Fabio Pistolesi:
    Phonon-induced pairing in quantum dot quantum simulator
    arXiv:2106.09418

  3. Bernhard Irsigler and Tobias Grass:
    The quantum annealing gap and quench dynamics in the exact cover problem
    arXiv:2106.08101

  4. B. Irsigler, T. Grass, J.-H. Zheng, M. Barbier, W. Hofstetter:
    Topological Mott transition in a Weyl-Hubbard model with dynamical mean-field theory
    Phys. Rev. B 103, 125132 (2021)
    arXiv:2011.05100

  5. Bin Cao, Tobias Grass, Glenn Solomon, Mohammad Hafezi:
    Optical flux pump in the quantum Hall regime
    Phys. Rev. B 103, L241301 (2021)
    arXiv:2104:06579

  6. Nicollo Baldelli, Utso Bhattarcharya, Bruno Julia-Diaz, Maciej Lewenstein, Tobias Grass:
    Tracing non-Abelian anyons with impurities
    Phys. Rev. B 104, 035133 (2021)
    arXiv:2102.02072

  7. Joana Fraxanet, Utso Bhattacharya, Tobias Grass, Debraj Rakshit, Maciej Lewenstein, Alexandre Dauphin:
    Topological properties of the long-range Kitaev chain with Aubry-André-Harper modulation
    Phys. Rev. Research 03, 013148 (2021)
    arXiv:2010.07102

  8. Bárbara Andrade, Valentin Kasper, Maciej Lewenstein, Christof Weitenberg, Tobias Graß:
    Editors' Suggestion. Preparation of the 1/2-Laughlin state with atoms in a rotating trap
    Phys. Rev. A 103, 063325 (2021)
    arXiv:2009.08943

    9. 2020


  9. Utso Bhattacharya, Swati Chaudhary, Tobias Grass, Maciej Lewenstein:
    Fermionic Chern insulator from twisted light with linear polarization
    arXiv:2006.10688

  10. Ze-Pei Cian, Tobias Grass, Abolhassan Vaezi, Zhao Liu, Mohammad Hafezi:
    Engineering Quantum Hall Phases in Synthetic Bilayer Graphene System
    Phys. Rev. B 102, 085430 (2020)
    arXiv:2005.13569

  11. Tobias Graß, Bruno Juliá-Díaz, Niccolò Baldelli, Utso Bhattacharya, Maciej Lewenstein:
    Fractional angular momentum and anyon statistics of impurities in Laughlin liquids
    Phys. Rev. Lett. 125, 136801 (2020)
    arXiv:2004.13504

  12. Tobias Grass, Ovidiu Cotlet, Atac İmamoğlu, Mohammad Hafezi:
    Optical excitations in compressible and incompressible two-dimensional electron liquids
    Phys. Rev. B 101, 155127 (2020)
    arXiv:2001.10807


    13. 2019

  13. Tobias Grass:
    Quantum annealing with longitudinal bias fields
    Phys. Rev. Lett. 123, 120501 (2019)
    arXiv:1906.02289

  14. Olivier Gazzano, Bin Cao, Jiuning Hu, Tobias Huber, Tobias Grass, Michael Gullans, David Newell, Mohammad Hafezi, Glenn S. Solomon:
    Observation of chiral photocurrent transport in the quantum Hall regime in graphene
    arXiv:1903.01487

  15. Tobias Grass:
    Excitations and correlations in the driven-dissipative Bose-Hubbard model
    Phys. Rev. A 99, 043607 (2019)
    arXiv:1901.10424


    16. 2018

  16. Tobias Grass, Przemyslaw Bienias, Michael Gullans, Rex Lundgren, Joseph Maciejko, and Alexey Gorshkov:
    Fractional quantum Hall phases of bosons with tunable interactions: From the Laughlin liquid to a fractional Wigner crystal
    Phys. Rev. Lett. 121, 253403 (2018)
    arXiv:1808.04493

  17. Tobias Grass, Michael Gullans, Przemyslaw Bienias, Guanyu Zhu, Areg Ghazaryan, Pouyan Ghaemi, and Mohammad Hafezi:
    Optical control over bulk excitations in fractional quantum Hall systems
    Phys. Rev. B 98, 155124 (2018)
    arXiv:1808.02964

  18. David Raventos, Tobias Grass, Bruno Julia-Diaz, and Maciej Lewenstein:
    Semiclassical approach to finite-temperature quantum annealing with trapped ions
    Phys. Rev. A 97, 052310 (2018)
    arXiv:1802.06397

  19. Tobias Grass, Alessio Celi, Guido Pagano, and Maciej Lewenstein:
    Chiral spin currents in a trapped-ion quantum simulator using Floquet engineering
    Phys. Rev. A 97, 010302(R) (2018)
    arXiv:1708.01882

    20. 2017


  20. Areg Ghazaryan, Tobias Grass, Michael J. Gullans, Pouyan Ghaemi, and Mohammad Hafezi:
    Light-Induced Fractional Quantum Hall Phases in Graphene
    Phys. Rev. Lett. 119, 247403 (2017)
    arXiv:1612.08748

  21. Tobias Grass and Maciej Lewenstein:
    Hybrid annealing: Coupling a quantum simulator to a classical computer
    Phys. Rev. A 95, 052309 (2017)
    arXiv:1611.09729

  22. Tobias Grass, Ravindra W. Chhajlany, Leticia Tarruell, Vittorio Pellegrini, and Maciej Lewenstein:
    Proximity effects in cold atom artificial graphene
    2D Mater. 4, 015039 (2017)
    arXiv:1608.02868

  23. David Raventos, Tobias Grass, Maciej Lewenstein, and Bruno Julia-Diaz:
    Cold bosons in optical lattices: a tutorial for Exact Diagonalization
    J. Phys. B: At. Mol. Opt. Phys. 50, 113001 (2017)
    arXiv:1410.7280

    24. 2016


  24. Tobias Grass, David Raventos, Christian Gogolin, Bruno Julia-Diaz, and Maciej Lewenstein:
    Quantum annealing for the number-partitioning problem using a tunable spin glass of ions
    Nat. Commun. 7:11524 (2016)
    arXiv:1507.07863

  25. Alessio Celi, Tobias Grass, Andrew J. Ferris, Bikash Padhi, David Raventos, Juliette Simonet, Klaus Sengstock, and Maciej Lewenstein:
    Modified spin-wave theory and spin liquid behavior of cold bosons on an inhomogeneous triangular lattice
    Phys. Rev. B 94, 075110 (2016)
    arXiv:1603.06561

  26. Tobias Grass, Maciej Lewenstein, and Alejandro Bermudez:
    Dual trapped-ion quantum simulators: an alternative route towards exotic quantum magnets
    New J. Phys. 18, 033011 (2016)
    arXiv:1511.04323

  27. David Raventos, Tobias Grass, Bruno Julia-Diaz, Luis Santos, and Maciej Lewenstein:
    Topological phases of lattice bosons with a dynamical gauge field
    Phys. Rev. A 93, 033605 (2016)
    arXiv:1511.08010

    28. 2015


  28. Tobias Grass:
    Quench dynamics of dipolar fermions in a one-dimensional harmonic trap
    Phys. Rev. A 92, 023634 (2015)
    arXiv:1507.05450

  29. Tobias Grass, Christine Muschik, Alessio Celi, Ravindra W. Chhajlany, and Maciej Lewenstein:
    Synthetic magnetic fluxes and topological order in one-dimensional spin systems
    Phys. Rev. A 91, 063612 (2015)
    arXiv:1412.6059

    30. 2014


  30. Tobias Grass, Ravindra W. Chhajlany, Christine Muschik, and Maciej Lewenstein:
    Spiral spin textures of bosonic Mott insulators with SU(3) spin-orbit coupling
    Phys. Rev. B 90, 195127 (2014)
    arXiv:1408.0769

  31. Tobias Grass, Alession Celi, and Maciej Lewenstein:
    Quantum magnetism of ultracold atoms with a dynamical pseudospin degree of freedom
    Phys. Rev. A 90, 043628 (2014)
    arXiv:1401.7608

  32. Tobias Grass and Maciej Lewenstein:
    Trapped-ion quantum simulation of tunable-range Heisenberg chains
    EPJ Quantum Technology 1, 8 (2014)
    arXiv:1401.6414

  33. Tobias Grass, Bruno Julia-Diaz, and Maciej Lewenstein:
    Topological phases in small quantum Hall samples
    Phys. Rev. A 89, 013623 (2014)
    arXiv:1310.1817

  34. Tobias Grass, David Raventos, Maciej Lewenstein, and Bruno Julia-Diaz:
    Quantum Hall phases of two-component bosons
    Phys. Rev. B 89, 045114 (2014)
    arXiv:1310.3709


    35. 2013


  35. Tobias Grass, Bruno Julia-Diaz, Marek Kus, Maciej Lewenstein:
    Quantum chaos in SU_3 models with trapped ions
    Phys. Rev. Lett. 111, 090404 (2013)
    arXiv:1305.5141

  36. Tomasz Sowinski, Tobias Grass, Omjyoti Dutta, Maciej Lewenstein:
    Few interacting fermions in one-dimensional harmonic trap
    Phys. Rev. A 88, 033607 (2013)
    arXiv:1304.8099

  37. Bruno Julia-Diaz, Tobias Grass, Omjyoti Dutta, Darrick E. Chang, and Maciej Lewenstein:
    Nanoplasmonic planar traps - a tool for engineering p-wave interactions
    Nat. Commun. 4, 2046 (2013)
    arXiv:1302.0757

  38. Tobias Grass, Bruno Julia-Diaz, Michele Burrello, and Maciej Lewenstein:
    Fractional quantum Hall states of a Bose gas with spin-orbit coupling
    J. Phys. B: At. Mol. Opt. Phys. 46 (2013) 134006
    arXiv:1210.8035


    39. 2012


  39. Tobias Grass, Bruno Julia-Diaz, and Maciej Lewenstein:
    Quasihole dynamics as a detection tool for quantum Hall phases
    Phys. Rev. A 86, 053629 (2012)
    arXiv:1210.2898

  40. Tobias Grass, Bruno Julia-Diaz, Nuria Barberan, and Maciej Lewenstein:
    Non-Abelian spin singlet states of two-component Bose gases in artificial gauge fields
    Phys. Rev. A 86, 021603(R) (2012)
    arXiv:1204.5423

  41. Bruno Julia-Diaz and Tobias Grass:
    Strongdeco: Expansion of analytical, strongly correlated quantum states into a many-body basis
    Com. Phys. Comm. 183, 737-745 (2012)
    arXiv:1111.3871

  42. Bruno Julia-Diaz, Tobias Grass, Nuria Barberan, and Maciej Lewenstein:
    Fractional quantum Hall states of few bosonic atoms in geometric gauge fields
    New J. Phys. 14, 055003 (2012)
    arXiv:1111.0798

  43. Ryan Barnett, Stephen Powell, Tobias Grass, Maciej Lewenstein, and S. Das Sarma:
    Order by Disorder in Spin-Orbit Coupled Bose-Einstein Condensates
    Phys. Rev. A 85 023615 (2012)
    arXiv:1109.4945


    44. 2011


  44. Tobias Grass, Kush Saha, Krishnendu Sengupta, and Maciej Lewenstein:
    Quantum phase transition of ultracold bosons in the presence of a non-Abelian synthetic gauge field
    Phys. Rev. A 84, 053632 (2011)
    arXiv:1108.2672

  45. Bruno Julia-Diaz, Daniel Dagnino, Kenneth J. Guenter, Tobias Grass, Nuria Barberan, Maciej Lewenstein, and Jean Dalibard:
    Strongly correlated states of a small cold atomic cloud from geometric gauge fields
    Phys. Rev. A 84, 053605 (2011)
    arXiv:1105.5021

  46. Tobias Grass, Mikhail Baranov, and Maciej Lewenstein:
    Robustness of Fractional Quantum Hall States with Dipolar Atoms in Artificial Gauge Fields
    Phys. Rev. A 84, 043605 (2011)
    arXiv:1105.0299

  47. Tobias Grass, Ednilson dos Santos, and Axel Pelster:
    Excitation Spectra of Bosons in Optical Lattices from Schwinger-Keldysh Calculation
    Phys. Rev. A 84, 013613 (2011)
    arXiv:1011.5639

  48. Tobias Grass, Ednilson dos Santos, and Axel Pelster:
    Real-Time Ginzburg-Landau Theory for Bosons in Optical Lattices
    Laser Phys. 21, 1459 (2011)
    arXiv:1003.4197


Theses


PhD thesis: Ultracold atoms in artificial gauge fields. 
ICFO and Universitat Politecnica de Catalunya (2013)


Diploma thesis: Real-Time Ginzburg-Landau Theory for Bosonic Gases in Optical Lattices.
Freie Universitaet Berlin (2009)


Book chapters


Proceedings of the International School of Physics "Enrico Fermi" 191, 1, 505-535 (2016)
arXiv:1501.02733
Jordi Tura, Ana Belen Sainz, Tobias Grass, Remigiusz Augusiak, Antonio Acin, and Maciej Lewenstein:
Entanglement and Nonlocality in Many-Body Systems: a primer