Journal articles

Nick Klemmer, Janek Fleper, Valentin Jonas, Ameneh Sheikhan, Corinna Kollath, Michael Köhl, and Andrea Bergschneider:
Floquet-Driven Crossover from Density-Assisted Tunneling to Enhanced Pair Tunneling
Phys. Rev. Lett. 133, 253402 (2024)

Andreas Kell, Moritz Breyer, Daniel Eberz, Michael Köhl:
Exciting the Higgs Mode in a Strongly Interacting Fermi Gas by Interaction Modulation
Phys. Rev. Lett. 133, 150403 (2024)

Steffen Gohlke, Thorsten F. Langerfeld, Andrea Bergschneider, and Michael Köhl:
Coupled high-finesse optical Fabry-Perot microcavities
Phys. Rev. A 109, L011501 (2024)

D. Eberz, M. Link, A. Kell, M. Breyer, K. Gao, and M. Köhl:
Detecting the phase transition in a strongly interacting Fermi gas by unsupervised machine learning
Phys. Rev. A 108, 063303 (2023)

M. Link, K. Gao, A. Kell, M. Breyer, D. Eberz, B. Rauf, and M. Köhl:
Machine Learning the Phase Diagram of a Strongly Interacting Fermi Gas
Phys. Rev. Lett. 130, 203401 (2023)

Johannes Kombe, Michael Köhl, Corinna Kollath, and Jean-Sébastien Bernier:
Radio-frequency driving of an attractive Fermi gas in a one-dimensional optical lattice
Phys. Rev. A 105, 023330 (2022)

Hannes Pfeifer, Lothar Ratschbacher, Jose Gallego, Carlos Saavedra, Alexander Faßbender, Andreas von Haaren, Wolfgang Alt, Sebastian Hofferberth, Michael Köhl, Stefan Linden, Dieter Meschede:
Achievements and Perspectives of Optical Fiber Fabry-Perot Cavities
Appl. Phys. B 128, 29 (2022),  arXiv:2111.08533

P. Kobel, M. Breyer, and M. Köhl: 
Deterministic spin-photon entanglement from a trapped ion in a fiber Fabry–Perot cavity
 npj Quantum Information 7, 6 (2021).

M. Gall, N. Wurz, J. Samland, C.F. Chan, and M. Köhl:
Competing magnetic orders in a bilayer Hubbard model with ultracold atoms
Nature 589, 40-43 (2021).

T. Harrison, M. Link, A. Behrle, K. Gao, A. Kell, J. Kombe, J.-S. Bernier, C. Kollath, and M. Köhl: 
Decay and Revival of a transient trapped Fermi condensate
 Phys. Rev. Research 3, 023205 (2021).

A Kell, M. Link, M. Breyer, A. Hoffmann, M. Köhl, and K. Gao: 
A compact and fast magnetic coil for the manipulation of quantum gases with Feshbach resonances
 Review of Scientific Instruments 92, 093202 (2021).

C.F. Chan, M. Gall, N. Wurz, and M. Köhl:
Pair correlations in the attractive Hubbard model
Phys. Rev. Research 2, 023210 (2020).

M. Gall, C.F. Chan, N. Wurz, and M. Köhl:
Simulating a Mott Insulator Using Attractive Interaction
Phys. Rev. Lett. 124, 010403 (2020).

J. Kombe, J.-S Bernier, M. Köhl, and C. Kollath :
Finite-duration interaction quench in dilute attractively interacting Fermi gases: Emergence of preformed pairs
Phys. Rev. A 100, 013604 (2019).

F. Rönchen, T. F. Langerfeld, and M. Köhl:
Correlated photon-pair generation in a liquid-filled microcavity
New J. Phys. 21, 123037 (2019).

J. Schmitz, H. M. Meyer, and M. Köhl:
Ultraviolet Fabry-Perot cavity with stable finesse under ultrahigh vacuum conditions
Review of Scientific Instruments 90, 063102 (2019).

A. Behrle, T. Harrison, J. Kombe, K. Gao, M. Link, J.-S. Bernier, C. Kollath, and M. Köhl:
Higgs mode in a strongly interacting fermionic superfluid
Nature Physics 14, 781-785 (2018).

T. F. Langerfeld, H. M. Meyer, and M. Köhl:
Correlated-photon-pair emission from a cw-pumped Fabry-Perot microcavity
Phys. Rev. A 97, 023822 (2018).

N. Wurz, C. F. Chan, M. Gall, J. H. Drewes, E. Cocchi, L. A. Miller, D. Pertot, F. Brennecke, and M. Köhl:
Coherent manipulation of spin correlations in the Hubbard model
Phys. Rev. A 97, 051602(R) (2018).

E. Cocchi, L. A. Miller, J. H. Drewes, C. F. Chan, D. Pertot, F. Brennecke, and M. Köhl:
Measuring Entropy and Short-Range Correlations in the Two-Dimensional Hubbard Model
Phys. Rev. X, 7, 031025 (2017).

J.H. Drewes, L.A. Miller, E. Cocchi, C. Chan, D. Pertot, F. Brennecke, M. Köhl;
Antiferromagnetic correlations in two- dimensional fermionic Mott-insulating and metallic phases
Phys. Rev. Lett. 118, 170401 (2017).

T. Ballance, H.M. Meyer, P. Kobel, K. Ott, J. Reichel, and M. Köhl
Cavity-induced back-action in Purcell-enhanced photoemission of a single ion in an ultraviolet fiber-cavity
Phys. Rev. A 95, 033812 (2017).

H. M. Meyer, M. Breyer, M. Köhl
Monolayer graphene as dissipative membrane in an optical resonator
Applied Physics B 122, 290 (2016).

J.H. Drewes, E. Cocchi, L.A. Miller, C. Chan, D. Pertot, F. Brennecke, M. Köhl
Thermodynamics vs. local density fluctuations in the metal/Mott-insulator crossover
Phys. Rev. Lett. 117, 135301 (2016).

E. Cocchi, L.A. Miller, J. H. Drewes, M. Koschorreck, D. Pertot, F. Brennecke, M. Köhl:
Equation of state of the two-dimensional Hubbard model
Phys. Rev. Lett. 116, 175301 (2016).

M. Koschorreck, D. Pertot, E. Vogt, M. Köhl:
Universal spin dynamics in two-dimensional Fermi gases
Nature Physics 9, 405–409 (2013).

L. Ratschbacher, C. Sias, L. Carcagni, J. M. Silver, C. Zipkes, M. Köhl:
Decoherence of a Single-Ion Qubit Immersed in a Spin-Polarized Atomic Bath
Phys. Rev. Lett. 110, 160402 (2013).

S. K. Baur, E. Vogt, M. Köhl, G. Bruun:
Collective modes of a two-dimensional spin-1/2 Fermi gas in a harmonic trap
Phys. Rev. A 87, 043612 (2013).

M. Steiner, H. M. Meyer, C. Deutsch, J. Reichel, M. Köhl:
A single ion coupled to an optical fiber cavity
Phys. Rev. Lett. 110, 043003 (2013); see also: Physics Focus: "Optical Fibers Illuminate Single Ion"

B. Fröhlich, M. Feld, E. Vogt, M. Koschorreck, M. Köhl, C. Berthod, T. Giamarchi:
Two-dimensional Fermi liquid with attractive interactions
Phys. Rev. Lett. 109, 130403 (2012).

L. Ratschbacher, C. Zipkes, C. Sias, M. Köhl:
Controlling chemical reactions of a single particle
Nature Physics 8, 649 (2012).

S. K. Baur, B. Fröhlich, M. Feld, E. Vogt, D. Pertot, M. Koschorreck, M. Köhl:
Radio frequency spectra of Feshbach molecules in quasi-two dimensional geometries
Phys. Rev. A 85, 061604 (2012).

M. Koschorreck, D. Pertot, E. Vogt, M. Feld, B. Fröhlich, M. Köhl:
Attractive and repulsive Fermi polarons in two dimensions
Nature 485, 691 (2012).

E. Vogt, M. Feld, B. Fröhlich, D. Pertot, M. Koschorreck, M. Köhl:
Scale invariance and viscosity of a two-dimensional Fermi gas
Phys. Rev. Lett. 108, 070404 (2012).

H. M. Meyer, M. Steiner, L. Ratschbacher, C. Zipkes, M. Köhl:
Laser spectroscopy and cooling of Yb+ ions on a deep-UV transition
Phys. Rev. A 85, 012502 (2012).

M. Feld, B. Fröhlich, E. Vogt, M. Koschorreck, M. Köhl:
Observation of a pairing pseudogap in a two-dimensional Fermi gas
Nature 480, 75 (2011).

A. Behrle, M. Koschorreck, M.Köhl:
Isotope shift and hyperfine splitting of the 4s - 5p transition of potassium
Phys. Rev. A 83, 052507 (2011).

C. Zipkes, L. Ratschbacher, C. Sias, M.Köhl:
Kinetics of a single trapped ion in an ultracold buffer gas
New J. Phys. 13, 053020 (2011).

B. Fröhlich, M. Feld, E. Vogt, M. Koschorreck, W. Zwerger, M.Köhl:
Radio-frequency spectroscopy of a strongly interacting two-dimensional Fermi gas
Phys. Rev. Lett. 106, 105301 (2011).

C. Zipkes, S. Palzer, L. Ratschbacher, C. Sias, M.Köhl:
Cold heteronuclear atom-ion collisions
Phys. Rev. Lett. 105, 133201 (2010).

C. Zipkes, S. Palzer, C. Sias, M.Köhl:
A trapped single ion inside a Bose-Einstein condensate
Nature 464, 388 (2010).

S. Palzer, C. Zipkes, C. Sias, M.Köhl:
Quantum transport through a Tonks-Girardeau gas
Phys. Rev. Lett. 103, 150601 (2009).

J.-S. Bernier, C. Kollath, A. Georges, L. De Leo, F. Gerbier, C. Salomon, M.Köhl:
Cooling fermionic atoms in optical lattices by shaping the confinement
Phys. Rev. A 79, 061601 (R) (2009).

F. Brennecke, T. Donner, S. Ritter, T. Bourdel, M. Köhl, T. Esslinger:
Cavity QED with a Bose-Einstein condensate
Nature 450, 268 (2007). (see also: arXiv:0706.3411).

N. Strohmaier, Y. Takasu, K. Günter, R. Jördens, M. Köhl, H. Moritz, T. Esslinger:
Interaction-controlled transport of an ultracold Fermi gas
Phys. Rev. Lett. 99, 220601 (2007).

C. Kollath, M. Köhl, T. Giamarchi:
Scanning tunneling microscopy with ultracold atoms
Phys. Rev. A 76, 063602 (2007).

T. Donner, S. Ritter, T. Bourdel, A. Öttl, M. Köhl, T. Esslinger:
Critical behaviour of a trapped interacting Bose gas
Science 315, 1556 (2007).

S. Ritter, A. Öttl, T. Donner, T. Bourdel, M. Köhl, T. Esslinger:
Observing the Formation of Long-range Order during Bose-Einstein Condensation
Phys. Rev. Lett. 98, 090402 (2007).

K. Günter, T. Stöferle, H. Moritz, M. Köhl, T. Esslinger:
Bose-Fermi mixtures in a three-dimensional optical lattice
Phys. Rev. Lett. 96, 180402 (2006).

M. Köhl:
Thermometry of Fermionic Atoms in an Optical Lattice
Phys. Rev. A 73, 031601(R) (2006).

T. Stöferle, H. Moritz, K. Günter, M. Köhl, T. Esslinger:
Molecules of Fermionic Atoms in Optical Lattices
Phys. Rev. Lett. 96, 030401 (2006).

K. Günter, T. Stöferle, H. Moritz, M. Köhl, T. Esslinger:
p-Wave Interactions in Low-Dimensional Fermi gases
Phys. Rev. Lett. 95, 230401 (2005).

A. Öttl, S. Ritter, M. Köhl, T. Esslinger:
Correlations and Counting Statistics of an Atom Laser
Phys. Rev. Lett. 95, 090404 (2005).

H. Moritz, T. Stöferle, K. Günter, M. Köhl, T. Esslinger:
Confinement Induced Molecules in a 1D Fermi Gas
Phys. Rev. Lett. 94, 210401 (2005).

M. Köhl, H. Moritz, T. Stöferle, K. Günter, T. Esslinger:
Fermionic Atoms in a Three-Dimensional Optical Lattice: Observing Fermi Surfaces, Dynamics and Interactions
Phys. Rev. Lett. 94, 080403 (2005).

C. Schori, T. Stöferle, H. Moritz, M. Köhl, T. Esslinger:
Excitations of a Superfluid in a 3D Optical Lattice
Phys. Rev. Lett. 93, 240402 (2004).

T. Stöferle, H. Moritz, C. Schori, M. Köhl, T. Esslinger:
Transition from a strongly interacting 1D superfluid to a Mott insulator
Phys. Rev. Lett. 92, 130403 (2004).

M. Köhl, T. W. Hänsch, T. Esslinger:
Measuring the temporal coherence of an atom laser beam
Phys. Rev. Lett. 87, 160404 (2001).

I. Bloch, M. Köhl, M. Greiner, T. W. Hänsch, T. Esslinger:
Optics with an Atom Laser Beam
Phys. Rev. Lett. 87, 030401 (2001).