Prof. Dr. Walter Hofstetter

Address:	Institut für Theoretische Physik
	Johann Wolfgang Goethe-Universität
	Max-von-Laue-Str. 1
	60438 Frankfurt / Main
	Germany
Office:	01.133
Phone:	+49 - 69 - 798 - 47819 +49 - 69 - 798 - 47821 (secretary)
Fax:	+49 - 69 - 798 - 47881
E-mail:	hofstett (at) physik (dot) uni-frankfurt (dot) de

Brief CV

Teaching

Relevant Links

Die Junge Akademie an der Berlin-Brandenburgischen Akademie der Wissenschaften

The Pappalardo Fellowship @ MIT

Research interests

Correlation effects in ultracold atomic gases (see physics web review of our work)
Transport through electronic nanostructures (see review on physorg )
Numerical renormalization group techniques
Flow equation approach to strongly correlated electron systems

Publications

1. I. Titvinidze, M. Snoek, and W. Hofstetter
   Resonant Superfluidity in an Optical Lattice
   preprint. [ arXiv:0912.1589 ]
   
   
2. Denis Semmler, Krzysztof Byczuk, and Walter Hofstetter
   Mott-Hubbard and Anderson metal-insulator transitions in correlated lattice fermions with binary disorder
   preprint. [ arXiv:0911.0934 ]
   
   
3. Ulf Bissbort, Ronny Thomale, and Walter Hofstetter
   Stochastic Mean-Field Theory: Method and Application to the disordered Bose-Hubbard Model at finite Temperature and Speckle Disorder
   preprint. [ arXiv:0911.0923 ]
   
   
4. Julia Wernsdorfer, Michiel Snoek, and Walter Hofstetter
   Lattice-Ramp Induced Dynamics in an Interacting Bose-Bose Mixture
   preprint. [ arXiv:0911.0697 ]
   
   
5. A. Kantian, M. Dalmonte, S. Diehl, W. Hofstetter, P. Zoller, A. J. Daley
   An atomic colour superfluid via three-body loss
   Phys. Rev. Lett. 103, 240401 (2009). [ arXiv:0908.3235 ]
   
   
6. A. Hubener, M. Snoek, and W. Hofstetter
   Dynamical Mean-Field Analysis of the Multispecies Bose-Hubbard Model
   Phys. Rev. B 80, 245109 (2009) [ abstract , arXiv:0902.2212 ]
   
   
7. Mathieu Taillefumier, Eskil D. Kuhl, Arne Brataas, Walter Hofstetter
   Hall Effect in spinor condensates
   Phys. Rev. B 80, 020407(R) (2009). [ arXiv:0901.1969 ]
   
   
8. U. Bissbort and W. Hofstetter
   Stochastic Mean-Field Theory for the Disordered Bose-Hubbard Model
   EPL 86 (2009) 50007. [ arXiv:0804.0007 ]
   
   
9. Andreas Hackl, David Roosen, Stefan Kehrein, Walter Hofstetter
   Nonequilibrium Spin Dynamics in the Ferromagnetic Kondo Model
   Phys. Rev. Lett. 102, 196601 (2009). [ arXiv:0903.1079 ]
   
   
10. K. Byczuk, W. Hofstetter, and D. Vollhardt
    Competition between Anderson localization and antiferromagnetism in correlated lattice fermion systems with disorder
    Phys. Rev. Lett. 102, 146403 (2009). [ arXiv:0810.2958 ]
    
    
11. I. Titvinidze, M. Snoek, and W. Hofstetter
    Generalized Dynamical Mean-Field Theory for Bose-Fermi Mixtures in Optical Lattices
    Phys. Rev. B 79, 144506 (2009). [ arXiv:0810.1733 ]
    
    
12. Krzysztof Byczuk, Michael Sekania, Walter Hofstetter, Arno P. Kampf
    Insulating behavior with spin and charge order in the ionic Hubbard model
    Phys. Rev. B 79, 121103(R) (2009). [ arXiv:0902.1076 ]
    
    
13. K. Byczuk, U. Yu, W. Hofstetter, and D. Vollhardt
    Ferromagnetism and metal-insulator transitions in correlated electron systems with alloy disorder
    Acta Physica Polonica A 115, 7 (2009).
    
    
14. M. Snoek, I. Titvinidze, C. Toke, K. Byczuk, and W. Hofstetter
    Antiferromagnetic Order of Strongly Interacting Fermions in a Trap:
    Real-Space Dynamical Mean-Field Analysis
    New J. Phys. 10, 093008 (2008). [ arXiv:0802.3211 ]
    
    
15. Akos Rapp, Walter Hofstetter, and Gergely Zarand
    Trionic phase of ultracold fermions in an optical lattice: A variational study
    Phys. Rev. B 77, 144520 (2008). [ arXiv:0707.2378 ]
    
    
16. I. Titvinidze, M. Snoek, and W. Hofstetter
    Supersolid Bose-Fermi Mixtures in Optical Lattices
    Phys. Rev. Lett. 100, 100401 (2008). [ arXiv:0708.3241 ]
    
    
17. David Roosen, Maarten Wegewijs and Walter Hofstetter
    Non-equilibrium dynamics of anisotropic large spins in the Kondo regime:
    Time-dependent numerical renormalization group analysis
    Phys. Rev. Lett. 100, 087201 (2008). [ arXiv:0705.3654 ]
    
    
18. Michiel Snoek and Walter Hofstetter
    Two-Dimensional Dynamics of Ultracold Atoms in Optical Lattices
    Phys. Rev. A 76, 051603 (2007). [ arXiv:0707.0870 ]
    
    
19. Karyn Le Hur, Philippe Doucet-Beaupre, and Walter Hofstetter
    Entanglement and Criticality in Quantum Impurity Systems
    Phys. Rev. Lett. 99, 126801 (2007). [ arXiv:0705.0957 ]
    
    
20. M. R. Wegewijs, Ch. Romeike, H. Schoeller and W. Hofstetter
    Magneto-transport through single-molecule magnets: Kondo-peaks, zero-bias dips, molecular symmetry and Berry's phase
    New J. Phys. 9 (2007) 344. [ pdf ]
    
    
21. Chung-Hou Chung and Walter Hofstetter
    Kondo effect in coupled quantum dots with RKKY interaction:
    Finite temperature and magnetic field effects
    Phys. Rev. B 76, 045329 (2007);
    see also Virtual Journal of Nanoscale Science and Technology 16, Issue 6 (August 6, 2007).
    [ cond-mat/0607772 ]
    
    
22. Akos Rapp, Gergely Zarand, Carsten Honerkamp, and Walter Hofstetter
    Color superfluidity and "baryon" formation in ultracold fermions
    Phys. Rev. Lett. 98, 160405 (2007). [ cond-mat/0607138 ]
    see also News and Views review on our work by F. Wilczek [ Nature Physics 3, 375 (2007) ]
    
    
23. K. Byczuk, W. Hofstetter, M. Kollar, and D. Vollhardt
    Surprises in correlated electron physics
    Acta Physica Polonica A 111, 549 (2007) [ pdf ]
    
    
24. Walter Hofstetter
    Eiskalte Atome: Quantenphysik nahe dem absoluten Nullpunkt
    Forschung Frankfurt 4/2006, p. 45-47. [ pdf ]
    
    
25. Gil Refael, Walter Hofstetter and David R. Nelson
    Transverse Meissner Physics of Planar Superconductors with Columnar Pins
    Phys. Rev. B 74, 174520 (2006). [ cond-mat/0605746 ]
    
    
26. C. Romeike, M.R. Wegewijs, W. Hofstetter and H. Schoeller
    Kondo-transport spectroscopy of single molecule magnets
    Phys. Rev. Lett. 97, 206601 (2006). [ cond-mat/0605514 ]
    
    
27. C. Kollath, A. Iucci, T. Giamarchi, W. Hofstetter, U. Schollwoeck
    Spectroscopy of ultracold atoms by periodic lattice modulations
    Phys. Rev. Lett. 97, 050402 (2006). [ cond-mat/0603721 ]
    
    
28. W. Hofstetter
    Ultracold atoms in optical lattices: tunable quantum many-body systems
    Phil. Mag. 86, 1891 (2006). [ pdf version ]
    
    
29. C. Romeike, M.R. Wegewijs, W. Hofstetter and H. Schoeller
    Quantum tunneling induced Kondo effect in single molecular magnets
    Phys. Rev. Lett. 96, 196601 (2006). [ cond-mat/0511664 ]
    
    
30. M. Sindel, W. Hofstetter, J. von Delft, and M. Kindermann
    Finite-Frequency Transport through a Quantum Dot in the Kondo Regime
    AIP Conference Proceedings, Vol. 850, p. 1373 (2006).
    
    
31. Walter Hofstetter
    Flavor Degeneracy and Effects of Disorder in Ultracold Atom Systems
    Advances in Solid State Physics 45, 109 (2005). [ cond-mat/0504113 ]
    
    
32. Krzysztof Byczuk, Walter Hofstetter, and Dieter Vollhardt
    Mott--Hubbard and Anderson Transitions in Dynamical Mean--Field Theory
    Physica B 359-361, 651-653 (2005). [ cond-mat/0502257 ]
    
    
33. Mei-Rong Li, Karyn Le Hur, and Walter Hofstetter
    Hidden Caldeira-Leggett dissipation in a Bose-Fermi Kondo model
    Phys. Rev. Lett. 95, 086406 (2005). [ cond-mat/0501755 ]
    
    
34. Ian Affleck, Walter Hofstetter, David R. Nelson, and Ulrich Schollwoeck
    Non-Hermitian Luttinger liquids and flux line pinning in planar superconductors
    J. Stat. Mech.: Theor. Exp. P10003 (2004). [ cond-mat/0408478 ]
    
    
35. M. Sindel, W. Hofstetter, J. von Delft, and M. Kindermann
    Frequency-dependent transport through a quantum dot in the Kondo regime
    Phys. Rev. Lett. 94, 196602 (2005). [ cond-mat/0406312 ]
    
    
36. Krzysztof Byczuk, Walter Hofstetter, and Dieter Vollhardt
    Mott--Hubbard transition vs. Anderson localization in Correlated Electron Systems with Disorder
    Phys. Rev. Lett. 94, 056404 (2005). [ cond-mat/0403765 ]
    
    
37. Carsten Honerkamp and Walter Hofstetter
    BCS pairing in Fermi systems with several flavors
    Phys. Rev. B 70, 094521 (2004). [ cond-mat/0403166 ]
    
    
38. L. Mathey, D.-W. Wang, W. Hofstetter, M.D. Lukin, Eugene Demler
    Luttinger liquid of polarons in one-dimensional boson-fermion mixtures
    Phys. Rev. Lett. 93, 120404 (2004) . [ quant-ph/0401151 ]
    
    
39. Carsten Honerkamp and Walter Hofstetter
    Ultracold fermions and the SU(N) Hubbard model
    Phys. Rev. Lett. 92, 170403 (2004). [ cond-mat/0309374 ]
    
    
40. Krzysztof Byczuk, Walter Hofstetter, and Dieter Vollhardt
    Mott-Hubbard metal-insulator transition at non-integer filling
    Phys. Rev. B 69, 045112 (2004). [ cond-mat/0309067 ]
    
    
41. E. Altman, W. Hofstetter, E. Demler and M. Lukin
    Phase diagram of two-component bosons on an optical lattice
    New Journal of Physics 5, 113.1 - 113.19 (2003). [ cond-mat/0306683 ]
    
    
42. W. Hofstetter and G. Zarand
    Singlet-Triplet Transition in lateral Quantum Dots: A Numerical Renormalization Group Study
    Phys. Rev. B 69, 235301 (2004). [ cond-mat/0306418 ]
    
    
43. Walter Hofstetter, Ian Affleck, David R. Nelson, and Ulrich Schollwoeck
    Non-Hermitian Luttinger Liquids and Vortex Physics
    Europhys. Lett. 66, 178 (2004). [ cond-mat/0305543 ]
    
    
44. M. Pustilnik, L.I. Glazman, and W. Hofstetter
    Singlet-triplet transition in a lateral quantum dot
    Phys. Rev. B 68, 161303 (2003). [ cond-mat/0304688 ]
    
    
45. L. Borda, G. Zarand, W. Hofstetter, B.I. Halperin, and J. von Delft
    SU(4) Fermi liquid state in a Double Quantum Dot System
    Phys. Rev. Lett. 90, 026602 (2003). [ cond-mat/0207001 ]
    
    
46. W. Hofstetter, J.I. Cirac, P. Zoller, E. Demler, and M.D. Lukin
    High-temperature superfluidity of fermionic atoms in optical lattices
    Phys. Rev. Lett. 89, 220407 (2002). [ cond-mat/0204237 ]
    
    
47. D. Boese, W. Hofstetter, and H. Schoeller
    Interference in interacting quantum dots with spin
    Phys. Rev. B 66, 125315 (2002). [ cond-mat/0201461 ]
    
    
48. Walter Hofstetter and Herbert Schoeller
    Quantum Phase Transition in a Multi-Level Dot
    Phys. Rev. Lett. 88, 016803 (2002). [ cond-mat/0108359 ]
    
    
49. Matthias Vojta, Ralf Bulla, and Walter Hofstetter,
    Quantum phase transitions in models of coupled magnetic impurities,
    Phys. Rev. B 65, 140405(R) (2002). [ cond-mat/0106458 ]
    
    
50. Walter Hofstetter, Jürgen König, and Herbert Schoeller,
    Kondo correlations and the Fano effect in closed Aharonov-Bohm interferometers,
    Phys. Rev. Lett. 87, 156803 (2001). [ cond-mat/0104497 ]
    
    
51. Walter Hofstetter,
    Numerical Renormalization Group analysis of interacting quantum dots,
    Invited talk at the DPG spring meeting 2001, Advances in Solid State Physics 41, 27 (2001).
    [ cond-mat/0104297 ]
    
    
52. Daniel Boese, Walter Hofstetter, and Herbert Schoeller,
    Interference and interaction effects in multi-level quantum dots,
    Phys. Rev. B 64, 125309 (2001). [ cond-mat/0010250 ]
    
    
53. W. Hofstetter and S. Kehrein,
    Flow equation analysis of the anisotropic Kondo model,
    Phys. Rev. B 63, 140402 (2001). [ cond-mat/0008242 ]
    
    
54. Walter Hofstetter,
    Renormalization Group Methods for Quantum Impurity Systems,
    PhD thesis , Augsburg (2000), ISBN 3-8265-8007-9 (Shaker Verlag, Aachen).
    
    
55. Walter Hofstetter,
    Generalized Numerical Renormalization Group for Dynamical Quantities,
    Phys. Rev. Lett. 85, 1508 (2000). [ cond-mat/0004458 ]
    
    
56. W. Hofstetter, R. Bulla, and D. Vollhardt,
    Anderson impurity in a correlated band,
    Phys. Rev. Lett. 84, 4417 (2000). [ cond-mat/9912396 ]
    
    
57. W. Hofstetter and S. Kehrein,
    Symmetric Anderson impurity model with a narrow band,
    Phys. Rev. B 59, R12732 (1999). [ cond-mat/9812427 ]
    
    
58. W. Hofstetter and W. Zwerger,
    Low temperature thermodynamics of inverse square spin models in one dimension,
    Eur. Phys. J. B 5, 751-756 (1998). [ cond-mat/9804311 ]
    
    
59. W. Hofstetter and D. Vollhardt,
    Frustration of antiferromagnetism in the t-t'-Hubbard model at weak coupling,
    Ann. Physik 7, 48 (1998). [ cond-mat/9802233 ]
    
    
60. W. Hofstetter and W. Zwerger,
    The Single-Electron-Box and the Helicity Modulus of an inverse square XY-Model,
    Phys. Rev. Lett. 78, 3737 (1997). [ cond-mat/9612180 ]
    
    
61. W. Hofstetter and M. Henkel,
    Finite-size scaling and universality in the spin-1 quantum XY chain,
    J. Phys. A: Math. Gen. 29, 1359 (1996). [ cond-mat/9512137 ]