Multi-qubit state visualizations to support problem solving − a pilot study Jonas Bley, Eva Rexigel, Alda Arias, Lars Krupp, Steffen Steinert, Nikolas Longen, Paul Lukowicz, Stefan Küchemann, Jochen Kuhn, Maximilian Kiefer-Emmanouilidis, Artur Widera preprint, arxiv:2406.16556 https://arxiv.org/abs/2406.16556
A miniaturized magnetic field sensor based on nitrogen-vacancy centers Stefan Dix, Dennis Lönard, Isabel Cardoso Barbosa, Jonas Gutsche, Jonas Witzenrath, and Artur Widera preprint, arXiv:2402.19372 https://arxiv.org/abs/2402.19372
Unravelling Interaction and Temperature Contributions in Unpolarized Trapped Fermionic Atoms in the BCS Regime Sejung Yong, Sian Barbosa, Jennifer Koch, Felix Lang, Axel Pelster, Artur Widera preprint, arXiv:2311.08853 https://arxiv.org/abs/2311.08853
Learning quantum properties with informationally redundant external representations: An eye-tracking study Eva Rexigel, Linda Qerimi, Jonas Bley, Sarah Malone, Stefan Küchenmann, Jochen Kuhn preprint, arXiv:2501.07389 https://arxiv.org/abs/2501.07389
Floquet-Engineering of Feshbach Resonances in Ultracold Gases Alexander Guthmann, Felix Lang, Louisa Marie Kienesberger, Sian Barbosa, Artur Widera preprint, arXiv:2503.05454 https://doi.org/10.48550/arXiv.2503.05454
Limits of absolute vector magnetometry with NV centers in diamond Dennis Lönard, Isabel Cardoso Barbosa, Stefan Johansson, Jonas Gutsche, Artur Widera preprint, arXiv:2504.20750 https://doi.org/10.48550/arXiv.2504.20750
Roadmap on Quantum Thermodynamics Steve Campbell, Irene D'Amico, Mario A. Ciampini, Janet Anders, Natalia Ares, Simone Artini, Alexia Auffèves, Lindsay Bassman Oftelie, Laetitia P. Bettmann, Marcus V. S. Bonança, Thomas Busch, Michele Campisi, Moallison F. Cavalcante, Luis A. Correa, Eloisa Cuestas, Ceren B. Dag, Salambô Dago, Sebastian Deffner, Adolfo Del Campo, Andreas Deutschmann-Olek, Sandro Donadi, Emery Doucet, Cyril Elouard, Klaus Ensslin, Paul Erker, Nicole Fabbri, Federico Fedele, Guilherme Fiusa, Thomás Fogarty, Joshua Folk, Giacomo Guarnieri, Abhaya S. Hegde, Santiago Hernández-Gómez, Chang-Kang Hu, Fernando Iemini, Bayan Karimi, Nikolai Kiesel, Gabriel T. Landi, Aleksander Lasek, Sergei Lemziakov, Gabriele Lo Monaco, Eric Lutz, Dmitrii Lvov, Olivier Maillet, Mohammad Mehboudi, Taysa M. Mendonça, Harry J. D. Miller, Andrew K. Mitchell, Mark T. Mitchison, Victor Mukherjee, Mauro Paternostro, Jukka Pekola, Martí Perarnau-Llobet, Ulrich Poschinger, Alberto Rolandi, Dario Rosa, Rafael Sánchez, Alan C. Santos, Roberto S. Sarthour, Eran Sela, Andrea Solfanelli, Alexandre M. Souza, Janine Splettstoesser, Dian Tan, Ludovico Tesser, Tan Van Vu, Artur Widera, Nicole Yunger Halpern, Krissia Zawadzki preprint, arXiv:2504.20145 https://doi.org/10.48550/arXiv.2504.20145
publications
2025
Stabilizing an Ultracold Fermi Gas against Fermi Acceleration to Superdiffusion through Localization Sian Barbosa, Maximilian Kiefer-Emmanouilidis, Felix Lang, Jennifer Koch, Artur Widera Phys. Rev. Lett. 134, 253402 (2025) https://doi.org/10.1103/rq4w-377l Data: https://zenodo.org/records/10478891
Investigating the use of multiple representations in university courses on quantum technologies Eva Rexigel, Jonas Bley, Alda Arias, Linda Qerimi, Stefan Küchemann, Jochen Kuhn, and Artur Widera EPJ Quantum Technology 12, 1 (2025) https://doi.org/10.1140/epjqt/s40507-025-00327-4
LLM-generated tips rival expert-created tips in helping students answer quantum-computing questions Lars Krupp, Jonas Bley, Isacco Gobbi, Alexander Geng, Sabine Müller, Sungho Suh, Ali Moghiseh, Arcesio Castaneda Medina, Valeria Bartsch, Artur Widera, Herwig Ott, Paul Lukowicz, Jakob Karolus and Maximilian Kiefer-Emmanouilidis EPJ Quantum Technol.12, 33 (2025) https://doi.org/10.1140/epjqt/s40507-025-00334-5
Probing the fluctuating magnetic field of Fe-triazole spin-crossover thin-layers with nitrogen-vacancy centers in diamond Isabel Cardoso Barbosa, Tim Hochdörffer, Juliusz A. Wolny, Dennis Lönard, Stefan Johansson, Jonas Gutsche, Volker Schünemann, Artur Widera ACS Nano 19, 13, 12937–12947 (2025) https://pubs.acs.org/doi/10.1021/acsnano.4c16748 Data: https://doi.org/10.5281/zenodo.14715400
Characterizing quantum gases in time-controlled disorder realizations using cross-correlations of density distributions S. Hiebel, B. Nagler, S. Barbosa, J. Koch, and A. Widera New J. Phys. 26, 013042 (2024) DOI 10.1088/1367-2630/ad1b82 Data: https://zenodo.org/records/10201108
Indication of critical scaling in time during the relaxation of an open quantum system Ling-Na Wu, Jens Nettersheim, Julian Feß, Alexander Schnell, Sabrina Burgardt, Silvia Hiebel, Daniel Adam, André Eckardt, and Artur Widera Nat. Commun. 15, 1714 (2024) DOI:10.1038/s41467-024-46054-9 Data: https://zenodo.org/records/10526596
Visualizing entanglement in multiqubit systems Jonas Bley, Eva Rexigel, Alda Arias, Nikolas Longen, Lars Krupp, Maximilian Kiefer-Emmanouilidis, Paul Lukowicz, Anna Donhauser, Stefan Küchemann, Jochen Kuhn, and Artur Widera Phys. Rev. Research 6, 023077 (2024) https://journals.aps.org/prresearch/abstract/10.1103/PhysRevResearch.6.023077
Stability and sensitivity of interacting fermionic superfluids to quenched disorder Jennifer Koch, Sian Barbosa, Felix Lang, and Artur Widera Nat. Commun.15 9292 (2024) https://doi.org/10.1038/s41467-024-51903-8
The More the Better? A Systematic Review and Meta-Analysis of the Benefits of More than Two External Representations in STEM Education Eva Rexigel, Jochen Kuhn, Sebastian Becker, and Sarah Malone Educ. Psychol. Rev.36, 4 (2024) https://doi.org/10.1007/s10648-024-09958-y
Generalized Clausius inequalities in a nonequilibrium cold-atom system Daniel Mayer, Eric Lutz, Artur Widera Communications Physics6, Article number: 61 (2023) https://www.nature.com/articles/s42005-023-01175-3
Sensitivity of a collisional single-atom spin probe Jens Nettersheim, Quentin Bouton, Daniel Adam und Artur Widera SciPost Phys. Core 6, 009 (2023) · published 16 February 2023 https://scipost.org/SciPostPhysCore.6.1.009
Floquet-heating-induced Bose condensation in a scarlike mode of an open driven optical-lattice system Alexander Schnell, Ling-Na Wu, Artur Widera, and André Eckardt Phys. Rev. A107, L021301 (2023) https://doi.org/10.1103/PhysRevA.107.L021301
2022
Power of a quasi-spin quantum Otto engine at negative effective temperature Jens Nettersheim, Sabrina Burgardt, Quentin Bouton, Daniel Adam, Eric Lutz and Artur Widera PRX Quantum3, 040334 – Published 23 December 2022 https://journals.aps.org/prxquantum/abstract/10.1103/PRXQuantum.3.040334
Fiber-tip endoscope for optical and microwave control Stefan Dix, Jonas Gutsche, Erik Waller, Georg von Freymann und Artur Widera Rev. Sci. Instrum.93, 095104 (2022) doi: 10.1063/5.0100330 https://aip.scitation.org/doi/10.1063/5.0100330
Ultracold Bose Gases in Dynamic Disorder with Tunable Correlation Time Benjamin Nagler, Martin Will, Silvia Hiebel, Sian Barbosa, Jennifer Koch, Michael Fleischhauer und Artur Widera Phys. Rev. Lett.128, 233601 https://doi.org/10.1103/PhysRevLett.128.233601
Revealing superradiant emission in the single-to-bulk transition of quantum emitters in nanodiamond agglomerates Jonas Gutsche, Ashkan Zand, Marek Bültel and Artur Widera New J. Phys.24, 053039 (2022) https://doi.org/10.1088/1367-2630/ac6bb8
Observing the loss and revival of long-range phase coherence through disorder quenches Benjamin Nagler, Sian Barbosa, Jennifer Koch, Giuliano Orso and Artur Widera PNAS119, e2111078118 (2022) DOI:10.1073/pnas.2111078118
2021
Objective comparison of methods to decode anomalous diffusion Gorka Muñoz-Gil, Giovanni Volpe, Miguel Angel Garcia-March, Erez Aghion, Aykut Argun, Chang Beom Hong, Tom Bland, Stefano Bo, J. Alberto Conejero, Nicolás Firbas, Òscar Garibo i Orts, Alessia Gentili, Zihan Huang, Jae-Hyung Jeon, Hélène Kabbech, Yeongjin Kim, Patrycja Kowalek, Diego Krapf, Hanna Loch-Olszewska, Michael A. Lomholt, Jean-Baptiste Masson, Philipp G. Meyer, Seongyu Park, Borja Requena, Ihor Smal, Taegeun Song, Janusz Szwabiński, Samudrajit Thapa, Hippolyte Verdier, Giorgio Volpe, Artur Widera, Maciej Lewenstein, Ralf Metzler and Carlo Manzo Nature Communications12, 6253 (2021) DOI:10.1038/s41467-021-26320-w https://www.nature.com/articles/s41467-021-26320-w
Ein einzelnes Atom als Quantensonde Daniel Mayer, Felix Schmidt and Artur Widera Physik in unserer Zeit51, 111 (2020) DOI: 10.1002/piuz.202070305
Cloud shape of a molecular Bose-Einstein condensate in a disordered trap: a case study of the dirty boson problem Benjamin Nagler, Milan Radonjić, Sian Barbosa, Jennifer Koch, Axel Pelster and Artur Widera New J. Phys.22, 033021 (2020) DOI: 10.1088/1367-2630/ab73cb https://arxiv.org/abs/1911.02626
Thermalization and Nonequilibrium Steady States in a Few-Atom System Daniel Mayer and Artur Widera Zeitschrift für Naturforschung A75, 413 (2020) DOI: 10.1515/zna-2020-0005
Single-atom quantum probes for ultracold gases boosted by nonequilibrium spin dynamics Quentin Bouton, Jens Nettersheim, Daniel Adam, Felix Schmidt, Daniel Mayer, Tobias Lausch, Eberhard Tiemann and Artur Widera Phys. Rev. X10, 011018 DOI:10.1103/PhysRevX.10.011018 Featured in:Physics: Viewpoint Story
Coherent remote control of quantum emitters embedded in polymer waveguides Alexander Landowski, Jonas Gutsche, Stefan Guckenbiehl, Marius Schönberg, Georg von Freymann and Artur Widera APL Photonics5, 016101 (2020) DOI:10.1063/1.5124618
2019
Functional Metallic Microcomponents via Liquid-Phase Multiphoton Direct Laser Writing: A Review Erik Hagen Waller, Stefan Dix, Jonas Gutsche, Artur Widera and Georg von Freymann Micromachines10, 827 (2019) DOI:10.3390/mi10120827 https://www.mdpi.com/2072-666X/10/12/827/htm
Tailored single-atom collisions at ultra-low energies Felix Schmidt, Daniel Mayer, Quentin Bouton, Daniel Adam, Tobias Lausch, Jens Nettersheim, Eberhard Tiemann and Artur Widera Phys. Rev. Lett.122, 013401 (2019) DOI:10.1103/PhysRevLett.122.013401 https://arxiv.org/abs/1809.08165
Controlled doping of a bosonic quantum gas with single neutral atoms Daniel Mayer, Felix Schmidt, Daniel Adam, Steve Haupt, Jennifer Koch, Tobias Lausch, Jens Nettersheim, Quentin Bouton and Artur Widera J. Phys. B 52, 015301 (2019) DOI:10.1088/1361-6455/aaf357 https://arxiv.org/abs/1805.01313
Einsatz von Classroom Response Systemen in Übungen Sebastian Zangerle, Jochen Kuhn and Artur Widera Progress in Science Education1, no. 2 (2019) DOI:10.25321/prise.2018.807
Motional and Spin Dynamics of Individual Neutral Impurities in an Ultracold Gas Felix Schmidt, Daniel Mayer, Tobias Lausch, Daniel Adam, Quentin Bouton, Michael Hohmann, Farina Kindermann, Jennifer Koch, Jens Nettersheim and Artur Widera Phys. Status Solidi B 1800710 (2019) DOI:10.1002/pssb.201800710
2018
Quantum spin dynamics of individual neutral impurities coupled to a Bose-Einstein condensate Felix Schmidt, Daniel Mayer, Quentin Bouton, Daniel Adam, Tobias Lausch, Nicolas Spethmann and Artur Widera Phys. Rev. Lett. 121, 130403 (2018) DOI:10.1103/PhysRevLett.121.130403 https://arxiv.org/abs/1802.08702
A versatile apparatus for fermionic lithium quantum gases based on an interference-filter laser system Benjamin Gänger, Jan Phieler, Benjamin Nagler and Artur Widera Rev. Sci. Instr.89, 093105 (2018) Featured as Editor's Pick DOI:10.1063/1.5045827
Direct laser written polymer waveguides with out of plane couplers for optical chips Alexander Landowski, Dominik Zepp, Sebastian Wingerter, Georg Freymann and Artur Widera APL Photonics2, 106102 (2017). DOI:10.1063/1.4994806 http://arxiv.org/abs/1703.08488
Optimizing quantum gas production by an evolutionary algorithm. Tobias Lausch, Michael Hohmann, Farina Kindermann, Daniel Mayer, Felix Schmidt and Artur Widera Applied Physics B122, 112 (2016). DOI:10.1007s00340-016-6391-2 https://arxiv.org/abs/1601.06038
Precision measurement of the Rb 87 tune-out wavelength in the hyperfine groand state F = 1 at 790nm. Felix Schmidt, Daniel Mayer, Michael Hohmann, Tobias Lausch, Farina Kindermann and Artur Widera Phys. Rev. A93, 022507 (2016). DOI:10.1103/physreva.93.022507 http://arxiv.org/abs/1512.03578
Neutral impurities in a Bose-Einstein condensate for simulation of the Fröhlich-polaron Michael Hohmann, Farina Kindermann, Benjamin Gänger, Tobias Lausch, Daniel Mayer, Felix Schmidt and Artur Widera EPJ Quantum Technology2, 23 (2015). DOI:10.1140/epjqt/s40507-015-0036-y http://arxiv.org/abs/1508.02646
Teaching Experimental Physics by Using Mobile Technologies as Experimental Tools Videoanalyse-Aufgaben in der Experimentalphysik 1. Pascal Klein, Sebastian Gröber, Jochen Kuhn, Henning Fouckhardt, Georg Freymann, Egbert Oesterschulze, Artur Widera, Anett Fleischhauer and Andreas Müller Phy. Did. A14, 1 (2015). http://www.phydid.de/index.php/phydid/article/view/571
2014
Note. Reliable low-vibration piezo-mechanical shutter Michael Bauer, Philipp Franzreb, Nicolas Spethmann and Artur Widera Rev. Sci. Instrum.85, 096101 (2014). DOI:10.1063/1.4894205
Microwave control of atomic motional states in a spin-dependent optical lattice Noomen Belmechri, Leonid Forster, Wolfgang Alt, Artur Widera, Dieter Meschede and Andrea Alberti Journal of Physics B46 104006 (2013). DOI: 10.1088/0953-4075/46/10/104006 http://arxiv.org/abs/1302.6208
2012
Dynamics of Single Neutral Impurity Atoms Immersed in an Ultracold Gas Nicolas Spethmann, Farina Kindermann, Shincy John, Claudia Weber, Dieter Meschede and Artur Widera Phys. Rev. Lett.109, 235301 (2012). DOI:10.1103/physrevlett.109.235301 http://arxiv.org/abs/1204.6051
Bayesian Feedback Control of a Two-Atom Spin-State in an Atom-Cavity System Stefan Brakhane, Wolfgang Alt, Tobias Kampschulte, Miguel Martinez-Dorantes, René Reimann, Seokchan Yoon, Artur Widera and Dieter Meschede Phys. Rev. Lett.109, 173601 (2012). DOI:10.1103/PhysRevLett.109.173601 http://arxiv.org/abs/1206.3184
Digital atom interferometer with single particle control on a discretized space-time geometry Andreas Steffen, Andrea Alberti, Wolfgang Alt, Noomen Belmechri, Sebastian Hild, Michal Karski, Artur Widera and Dieter Meschede Proc. Nat. Acad. Sci.109, 9770 (2012). DOI:10.1073/pnas.1204285109 https://arxiv.org/abs/1404.3994
Coherently walking, rocking and blinding single neutral atoms. Artur Widera, Wolfgang Alt and Dieter Meschede Journal of Physics264, 012021 (2011). http://stacks.iop.org/1742-6596/264/i=1/a=012021
Direct Observation and Analysis of Spin-Dependent Transport of Single Atoms in a 1D Optical Lattice. Michal Karski, Leonid Förster, Jai-Min Choi, Wolfgang Alt, Andrea Alberti, Artur Widera and Dieter Meschede J. Korean Phys. Soc.59, 2947 (2011). http://arxiv.org/abs/1102.3356
2010
Imprinting patterns of neutral atoms in an optical lattice using magnetic resonance techniques Michal Karski, Leonid Förster, Jai-Min Choi, Andreas Steffen, Noomen Belmechri, Wolfgang Alt, Dieter Meschede and Artur Widera New J. Phys.12, 065027 (2010). http://stacks.iop.org/1367-2630/12/i=6/a=065027 http://xxx.lanl.gov/abs/0912.2517
Analyzing quantum jumps of one and two atoms strongly coupled to an optical cavity Sebastian Reick, Klaus Mølmer, Wolfgang Alt, Martin Eckstein, Tobias Kampschulte, Lingbo Kong, René Reimann, Alexander Thobe, Artur Widera and Dieter Meschede J. Opt. Soc. Am. B27, 152 (2010). DOI:10.1364/JOSAB.27.00A152 http://arxiv.org/abs/1002.1366v1
Quantum Jumps and Spin Dynamics of Interacting Atoms in a Strongly Coupled Atom-Cavity System Mkrtych Khudaverdyan, Wolfgang Alt, Tobias Kampschulte, Sebastian Reick, Alexander Thobe, Artur Widera and Dieter Meschede Phys. Rev. Lett., Vol. 103, Nr. 12, S. 123006. (2009) DOI:10.1103/PhysRevLett.103.123006 http://lanl.arxiv.org/abs/0901.3738
Microwave Control of Atomic Motion in Optical Lattices Leonid Förster, Michal Karski, Jai-Min Choi, Andreas Steffen, Wolfgang Alt, Dieter Meschede, Artur Widera, Enrique Montano, Jae Lee, Worawarong Rakreungdet and Poul Jessen Physical Review Letters, Vol. 103, Nr. 23, S. 233001. (2009) DOI:10.1103/PhysRevLett.103.233001 http://arxiv.org/abs/0909.0678
Quantum Walk in Position Space with Single Optically Trapped Atoms Michal Karski, Leonid Förster, Jai-Min Choi, Andreas Steffen, Wolfgang Alt, Dieter Meschede and Artur Widera Science, Vol. 325, S. 174. (2009) http://xxx.lanl.gov/abs/0907.1565
Nearest-Neighbor Detection of Atoms in a 1D Optical Lattice by Fluorescence Imaging Michal Karski, Leonid Förster, Jai-Min Choi, Wolfgang Alt, Artur Widera and Dieter Meschede Phys. Rev. Lett., Vol. 102, Nr. 5, S. 053001. (2009) DOI:10.1103/PhysRevLett.102.053001 http://arxiv.org/pdf/0807.3894
2008
Expansion of a Quantum Gas Released from an Optical Lattice. Fabrice Gerbier, Stefan Trotzky, Simon Fölling, Ute Schnorrberger, Joe Thompson, Artur Widera, Immanuel Bloch, Lode Pollet, Matthias Troyer, Barbara Capogrosso-Sansone, Nikolay Prokof’ev and Boris Svistunov Phys. Rev. Lett. 101, 155303. (2008) DOI:10.1103/PhysRevLett.101.155303 http://lanl.arxiv.org/abs/0808.2212
Controlled insertion and retrieval of atoms coupled to a high-finesse optical resonator. Mkrtych Khudaverdyan, Wolfgang Alt, Igor Dotsenko, Tobias Kampschulte, Karim Lenhard, Arno Rauschenbeutel, Sebastian Reick, Karsten Schörner, Artur Widera and Dieter Meschede New Journal of Physics, Vol. 10, Nr. 7, S. 073023. (2008) http://stacks.iop.org/1367-2630/10/i=7/a=073023 http://lanl.arxiv.org/abs/0805.0765
Quantum Spin Dynamics of Mode-Squeezed Luttinger Liquids in Two-Component Atomic Gases. Artur Widera, Stefan Trotzky, Patrick Cheinet, Simon Fölling, Fabrice Gerbier, Immanuel Bloch, Vladimir Gritsev, Mikhail D. Lukin and Eugene Demler Phys. Rev. Lett.100, 140401 (2008) DOI:10.1103/PhysRevLett.100.140401 https://arxiv.org/abs/0709.2094
Visibility of a Bose-condensed gas released from an optical lattice at finite temperatures. Fabrice Gerbier, Simon Fölling, Artur Widera and Immanuel Bloch eprint arXiv:cond-mat/0701420, (2007) https://arxiv.org/abs/cond-mat/0701420
Quantum information processing in optical lattices and magnetic microtraps. Philipp Treutlein, Tilo Steinmetz, Yves Colombe, Benjamin Lev, Peter Hommelhoff, Jakob Reichel, Markus Greiner, Olaf Mandel, Artur Widera, Tim Rom, Immanuel Bloch and Theodor Hänsch Fortschritte der Physik, Vol. 54, Nr. 8-10, S. 702 - 718. (2006) DOI:10.1002/prop.200610325 http://lanl.arxiv.org/abs/quant-ph/0605163
Spatial quantum noise interferometry in expanding ultracold atom clouds Simon Fölling, Fabrice Gerbier, Artur Widera, Olaf Mandel, Tatjana Gericke and Immanuel Bloch Nature, Vol. 434, Nr. 7032, S. 481 - 484. (2005) http://lanl.arxiv.org/abs/cond-mat/0503587
Tonks-Girardeau gas of ultracold atoms in an optical lattice Belen Paredes, Artur Widera, Valentin Murg, Olaf Mandel, Simon Fölling, Ignacio Cirac, Gora Shlyapnikov, Theodor Hänsch and Immanuel Bloch Nature, Vol. 429, Nr. 6989, S. 277 - 281. (2004) http://dx.doi.org/10.1038/nature02530
Entanglement Interferometry for Precision Measurement of Atomic Scattering Properties Artur Widera, Olaf Mandel, Markus Greiner, Susanne Kreim, Theodor Hänsch and Immanuel Bloch Phys. Rev. Lett., Vol. 92, Nr. 16, S. 160406. (2004) DOI:10.1103/PhysRevLett.92.160406 http://lanl.arxiv.org/abs/cond-mat/0310719
2003
Controlled collisions for multi-particle entanglement of optically trapped atoms Olaf Mandel, Markus Greiner, Artur Widera, Tim Rom, Theodor Hänsch and Immanuel Bloch Nature, Vol. 425, Nr. 6961, S. 937 - 940. (2003) http://lanl.arxiv.org/abs/quant-ph/0308080
