Igor Boettcher

Department of Physics
Simon Fraser University

8888 University Drive
Burnaby, BC, V5A 1S6
Canada

Phone: 778-782-3162

E-Mail: iboettch (at) sfu.ca

Research Interests

  • Quantum field theory of condensed matter systems
  • Ultracold quantum gases
    • Precision observables for quantum many-body physics
    • Calculation and measurement of the equation of state
  • Superconductivity and quantum phase transitions
  • Renormalization Group

Publications

  1. "Anisotropy induces non-Fermi liquid behavior and nemagnetic order in three-dimensional Luttinger semimetals"
    Boettcher, Herbut
    [arXiv:1611.05904]
     
  2. "Quasi-long-range order in trapped two-dimensional Bose gases"
    Boettcher, Holzmann
    Phys. Rev. A 94, 011602(R) (2016), [arXiv:1605.00597]
    Rapid Communication
     
  3. "Dimensional crossover of nonrelativistic bosons"
    Lammers, Boettcher, Wetterich
    Phys. Rev. A 93, 063631 (2016), [arXiv:1603.02409]
     
  4. "Superconducting quantum criticality in three-dimensional Luttinger semimetals"
    Boettcher, Herbut
    Phys. Rev. B 93, 205138 (2016), [arXiv:1603.00031]
     
  5. "Equation of State of Ultracold Fermions in the 2D BEC-BCS Crossover Region"
    Boettcher, Bayha, Kedar, Murthy, Neidig, Ries, Wenz, Zürn, Jochim, Enss
    Phys. Rev. Lett. 116, 045303 (2016), [arXiv:1509.03610]
    Editors' Suggestion
    Viewpoint in Physics, Press release Heidelberg University
     
  6. "Observation of the Berezinskii-Kosterlitz-Thouless Phase Transition in an Ultracold Fermi Gas"
    Murthy, Boettcher, Bayha, Holzmann, Kedar, Neidig, Ries, Wenz, Zürn, Jochim
    Phys. Rev. Lett. 115, 010401 (2015), [arXiv:1505.02123]
    Editors' Suggestion
     
  7. "Scaling relations and multicritical phenomena from Functional Renormalization"
    Boettcher
    Phys. Rev. E 91, 062112 (2015), [arXiv:1503.07817]
     
  8. "Observation of Pair Condensation in the Quasi-2D BEC-BCS Crossover"
    Ries, Wenz, Zürn, Bayha, Boettcher, Kedar, Murthy, Neidig, Lompe, Jochim
    Phys. Rev. Lett. 114, 230401 (2015), [arXiv:1409.5373]
    Editors' Suggestion
    Viewpoint in Physics, Press release Heidelberg University
     
  9. "Sarma phase in relativistic and non-relativistic systems "
    Boettcher, Herbst, Pawlowski, Strodthoff, von Smekal, Wetterich
    Phys. Lett. B 742, 86 (2015), [arXiv:1409.5232]
     
  10. "Phase structure of spin-imbalanced unitary Fermi gases"
    Boettcher, Braun, Herbst, Pawlowski, Roscher, Wetterich
    Phys. Rev. A 91, 013610 (2015), [arXiv:1409.5070]
     
  11. "Critical temperature and superfluid gap of the Unitary Fermi Gas from Functional Renormalization"
    Boettcher, Pawlowski, Wetterich
    Phys. Rev. A 89, 053630 (2014), [arXiv:1312.0505]
     
  12. "Error estimates and specification parameters for functional renormalization"
    Schnoerr, Boettcher, Pawlowski, Wetterich
    Annals Phys. 334 (2013) 83-99, [arXiv:1301.4169]
     
  13. "Tan contact and universal high momentum behavior of the fermion propagator in the BCS-BEC crossover"
    Boettcher, Diehl, Pawlowski, Wetterich
    Phys. Rev. A 87, 023606 (2013), [arXiv:1209.5641]
     
  14. "Ultracold atoms and the Functional Renormalization Group"
    Boettcher, Pawlowski, Diehl
    Nucl. Phys. B (Proc. Suppl.) 228 (2012) 63-135, [arXiv:1204.4394]
     
  15. "Hydrodynamic collective modes for cold trapped gases"
    Boettcher, Floerchinger, Wetterich
    J. Phys. B: At. Mol. Opt. Phys. 44 (2011) 235301, [arXiv:1103.5342]
     
publications from the arXiv and Google Scholar
 
summaries of selected articles for non-scientists

Theses

  • Doctoral thesis "Dimensional BCS-BEC crossover in ultracold Fermi gases" (Heidelberg University, 2014) under the supervision of C. Wetterich
     
  • Diploma thesis "Precision observables for ultracold quantum gases" (Heidelberg University, 2011) under the supervision of C. Wetterich

Honors

  • Otto-Haxel-Prize 2011 for the diploma thesis "Precision observables for ultracold quantum gases", awarded by the Faculty of Physics and Astronomy, Heidelberg University

Teaching

  • Exercises for Theoretical Physics III for Teachers (Heidelberg, SS 15)
  • Tutorial on Electrodynamics Seminar (Heidelberg, WS 12)
  • Exercises for Statistical Mechanics (Heidelberg, WS 11/12)
  • Tutorial on Quantum Mechanics (Heidelberg, SS 11)
  • Tutorial on Quantum Mechanics (Heidelberg, SS 10)
  • Tutorial on Statistical Mechanics (Heidelberg, WS 09/10)
  • Tutorial on Quantum Mechanics (Heidelberg, SS 09)
  • Tutorial on Electrodynamics (Heidelberg, WS 08/09)

Links