Dr. · Quantum Technologies with Individual Atoms

1. C. Robens, I. Arrazola, W. Alt, D. Meschede, L. Lamata, E. Solano, A. Alberti
Boson sampling with ultracold atoms in a programmable optical lattice — Phys. Rev. A 110 012615 (2024)

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2. T. Legrand, F. Winkelmann, W. Alt, D. Meschede, A. Alberti, C. Weidner
Three-dimensional imaging of single atoms in an optical lattice via helical point-spread-function engineering — Phys. Rev. A 109 033304 (2024)

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3. F. Winkelmann, C. Weidner, G. Ramola, W. Alt, D. Meschede, A. Alberti
Direct measurement of the Wigner function of atoms in an optical trap — Phys. B: At. Mol. Opt. Phys. 55 194004 (2022)

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4. E. Uruñuela, M. Ammenwerth, P. Malik, L. Ahlheit, H. Pfeifer, W. Alt, D. Meschede
Raman imaging of atoms inside a high-bandwidth cavity — Phys. Rev. A 105 043321 (2022)

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5. C. Saavedra, D. Pandey, W. Alt, D. Meschede, H. Pfeifer
A fiber Fabry-Perot cavity based spectroscopic gas sensor — arXiv:2205.06835 (2022)

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6. H. Pfeifer, L. Ratschbacher, J. Gallego, C. Saavedra, A. Faßbender, A. Haaren, W. Alt, S. Hofferberth, M. Köhl, S. Linden, D. Meschede
Achievements and perspectives of optical fiber Fabry–Perot cavities — App. Phys. B 128 29 (2022)

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7. C. Saavedra, D. Pandey, W. Alt, H. Pfeifer, D. Meschede
Tunable fiber Fabry-Perot cavities with high passive stability — Optics Express 29 974 (2021)

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8. G. Ramola, R. Winkelmann, K. Chandrashekara, W. Alt, X. Peng, D. Meschede, A. Alberti
Ramsey imaging of optical traps — Phys. Rev. Appl. 16 024041 (2021)

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9. G. Ness, M. Lam, W. Alt, D. Meschede, Y. Sagi, A. Alberti
Observing crossover between quantum speed limits — Sci. Adv. 7 abj9119 (2021)

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10. M. Lam, N. Peter, T. Groh, W. Alt, C. Robens, D. Meschede, A. Negretti, S. Montangero, T. Calarco, A. Alberti
Demonstration of quantum brachistochrones between distant states of an atom — Phys. Rev. X (Featured in Physics) 11 011035 (2021)

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11. E. Uruñuela, W. Alt, E. Keiler, D. Meschede, D. Pandey, H. Pfeifer, T. Macha
Ground-State Cooling of a Single Atom in a High-Bandwidth Cavity — Phys. Rev. A 101 023415 (2020)

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12. T. Macha, E. Uruñuela, W. Alt, M. Ammenwerth, D. Pandey, H. Pfeifer, D. Meschede
Non-adiabatic Storage of Short Light Pulses in an Atom-Cavity System — Phys. Rev. A 101 053406 (2020)

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13. P. Loock, W. Alt, C. Becher, O. Benson, H. Boche, C. Deppe, J. Eschner, S. Höfling, D. Meschede, P. Michler, F. Schmidt, H. Weinfurter
Extending Quantum Links: Modules for Fiber- and Memory-Based Quantum Repeaters — Adv. Quantum Technol. 1900141 (2020)

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14. M. Zopf, T. Macha, R. Keil, E. Uruñuela, Y. Chen, W. Alt, L. Ratschbacher, F. Ding, D. Meschede, O. Schmidt
Frequency feedback for two-photon interference from separate quantum dots — Phys. Rev. B 98 161302(R) (2018)

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15. C. Robens, S. Brakhane, W. Alt, D. Meschede, J. Zopes, A. Alberti
Fast, high-precision optical polarization synthesizer for ultracold-atom experiments — Phys. Rev. Applied 9 034016 (2018)

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16. M. Martinez-Dorantes, W. Alt, J. Gallego, S. Ghosh, L. Ratschbacher, D. Meschede
State-dependent fluorescence of neutral atoms in optical potentials — Phys. Rev. A 97 023410 (2018)

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17. J. Gallego, W. Alt, T. Macha, M. Martinez-Dorantes, D. Pandey, D. Meschede
Strong Purcell effect on a neutral atom trapped in an open fiber cavity — Phys. Rev. Lett. 121 17360 (2018)

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18. C. Robens, J. Zopes, W. Alt, S. Brakhane, D. Meschede, A. Alberti
Low-entropy states of neutral atoms in polarization-synthesized optical lattices — Phys. Rev. Lett. 118 065302 (2017)

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19. C. Robens, S. Brakhane, W. Alt, F. Kleißler, D. Meschede, G. Moon, G. Ramola, a. Alberti
High numerical aperture (NA = 0.92) objective lens for imaging and addressing of cold atoms — Opt. Lett. 42 1043 (2017)

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20. M. Martinez-Dorantes, W. Alt, J. Gallego, S. Ghosh, L. Ratschbacher, Y. Völzke, D. Meschede
Fast Nondestructive Parallel Readout of Neutral Atom Registers in Optical Potentials — Phys. Rev. Lett. 119 180503 (2017)

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21. C. Robens, W. Alt, C. Emary, D. Meschede, A. Alberti
Atomic "bomb testing": the Elitzur-Vaidman experiment violates the Leggett-Garg inequality — Appl. Phys. B 123 12 (2016)

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22. T. Groh, S. Brakhane, W. Alt, D. Meschede, J. Asbóth, A. Alberti
Robustness of topologically protected edge states in quantum walk experiments with neutral atoms — Phys. Rev. A (Editors' Suggestion) 94 013620 (2016)

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23. J. Gallego, S. Ghosh, S. Alavi, W. Alt, M. Martinez-Dorantes, D. Meschede, L. Ratschbacher
High Finesse Fiber Fabry-Perot Cavities: Stabilization and Mode Matching Analysis — Appl. Phys. B 122 47 (2016)

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24. A. Alberti, C. Robens, W. Alt, S. Brakhane, M. Karski, R. Reimann, A. Widera, D. Meschede
Super-resolution microscopy of single atoms in optical lattices — New J. Phys. 18 053010 (2016)

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25. C. Robens, W. Alt, D. Meschede, C. Emary, A. Alberti
Ideal Negative Measurements in Quantum Walks Disprove Theories Based on Classical Trajectories — Phys. Rev. X (Featured in Physics) 5 011003 (2015)

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26. R. Reimann, W. Alt, T. Kampschulte, T. Macha, L. Ratschbacher, N. Thau, S. Yoon, D. Meschede
Cavity-Modified Collective Rayleigh Scattering of Two Atoms — Phys. Rev. Lett. 114 023601 (2015)

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27. S. Brakhane, W. Alt, D. Meschede, C. Robens, G. Moon, A. Alberti
Ultra-low birefringence dodecagonal vacuum glass cell — Rev. Sci. Instrum. 86 126108 (2015)

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28. S. Brakhane, W. Alt, D. Meschede, C. Robens, A. Alberti
Polarisationserhaltende Vakuum-Zelle zur Anwendung oder Messung elektromagnetischer Wellen im Vakuum — Patent pending (2015)

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29. R. Reimann, W. Alt, T. Macha, D. Meschede, N. Thau, S. Yoon, L. Ratschbacher
Carrier-free Raman manipulation of trapped neutral atoms — New J. Phys. 16 113042 (2014)

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30. T. Kampschulte, W. Alt, S. Manz, M. Martinez-Dorantes, R. Reimann, S. Yoon, D. Meschede, M. Bienert, G. Morigi
Electromagnetically-induced-transparency control of single-atom motion in an optical cavity — Phys. Rev. A 89 033404 (2014)

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31. S. Gammelmark, W. Alt, T. Kampschulte, D. Meschede, K. ølmer
Hidden Markov Model of atomic quantum jump dynamics in an optically probed cavity — Phys. Rev. A 89 043839 (2014)

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32. A. Alberti, W. Alt, R. Werner, D. Meschede
Decoherence Models for Discrete-Time Quantum Walks and their Application to Neutral Atom Experiments — New J. Phys. 16 123052 (2014)

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33. A. Steffen, W. Alt, M. Genske, D. Meschede, C. Robens, A. Alberti
In-situ measurement of vacuum window birefringence by atomic spectroscopy — Rev. Sci. Instrum. 84 126103 (2013)

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34. M. Genske, W. Alt, A. Steffen, A. Werner, R. Werner, D. Meschede, A. Alberti
Electric quantum walks with individual atoms — Phys. Rev. Lett. 110 190601 (2013)

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35. N. Belmechri, L. Förster, W. Alt, A. Widera, D. Meschede, A. Alberti
Microwave control of atomic motional states in a spin-dependent optical lattice — J. Phys. B: At. Mol. Opt. Phys. 46 104006 (2013)

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36. U. Wiedemann, W. Alt, D. Meschede
Switching photochromic molecules adsorbed on optical microfibres — Opt. Express 20 12710-12720 (2012)

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37. A. Steffen, A. Alberti, W. Alt, N. Belmechri, S. Hild, M. Karski, A. Widera, D. Meschede
A digital atom interferometer with single particle control on a discretized spacetime geometry — PNAS 109 9770 (2012)

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38. S. Brakhane, W. Alt, T. Kampschulte, M. Martinez-Dorantes, R. Reimann, S. Yoon, A. Widera, D. Meschede
Bayesian Feedback Control of a Two-Atom Spin-State in an Atom-Cavity System — Phys. Rev. Lett. 109 173601 (2012)

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39. A. Widera, W. Alt, D. Meschede
Coherently Walking, Rocking and Blinding Single Neutral Atoms — J. Phys.: Conf. Ser. 264 012021 (2011)

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40. M. Karski, L. Förster, J. Choi, W. Alt, A. Alberti, A. Widera, D. Meschede
Direct Observation and Analysis of Spin-Dependent Transport of Single Atoms in a 1D Optical Lattice — J. Korean Phys. Soc. 59 2947 (2011)

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41. R. Garcia-Fernandez, W. Alt, F. Bruse, C. Dan, K. Karapetyan, O. Rehband, A. Stiebeiner, U. Wiedemann, D. Meschede, A. Rauschenbeutel
Optical nanofibers and spectroscopy — Applied Physics B 105 3–15 (2011)

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42. U. Wiedemann, K. Karapetyan, C. Dan, D. Pritzkau, W. Alt, S. Irsen, D. Meschede
Measurement of submicrometre diameters of tapered optical fibres using harmonic generation — Opt. Express 18 7693–7704 (2010)

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43. S. Reick, K. Mølmer, W. Alt, M. Eckstein, T. Kampschulte, L. Kong, R. Reimann, A. Thobe, A. Widera, D. Meschede
Analyzing quantum jumps of one and two atoms strongly coupled to an optical cavity — J. Opt. Soc. Am. B 27 A152 (2010)

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44. M. Karski, L. Förster, J. Choi, A. Steffen, N. Belmechri, W. Alt, D. Meschede, A. Widera
Imprinting Patterns of Neutral Atoms in an Optical Lattice using Magnetic Resonance Techniques — New J. Phys. 12 065027 (2010)

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45. T. Kampschulte, W. Alt, S. Brakhane, M. Eckstein, R. Reimann, A. Widera, D. Meschede
Optical control of the refractive index of a single atom — Phys. Rev. Lett. 105 153603 (2010)

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46. M. Khudaverdyan, W. Alt, T. Kampschulte, S. Reick, A. Thobe, A. Widera, D. Meschede
Quantum jumps and spin dynamics of interacting atoms in a strongly coupled atom-cavity system — Phys. Rev. Lett. 103 123006 (2009)

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47. M. Karski, L. Förster, J. Choi, A. Steffen, W. Alt, D. Meschede, A. Widera
Quantum Walk in Position Space with Single Optically Trapped Atoms — Science 325 174 (2009)

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48. M. Karski, L. Förster, J. Choi, W. Alt, A. Widera, D. Meschede
Nearest-Neighbor Detection of Atoms in a 1D Optical Lattice by Fluorescence Imaging — Phys. Rev. Lett. 102 053001 (2009)

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49. L. Förster, M. Karski, J. Choi, A. Steffen, W. Alt, D. Meschede, A. Widera, E. Montano, J. Lee, W. Rakreungdet, P. Jessen
Microwave Control of Atomic Motion in Optical Lattices — Phys. Rev. Lett. 103 233001 (2009)

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50. M. Khudaverdyan, W. Alt, I. Dotsenko, T. Kampschulte, K. Lenhard, A. Rauschenbeutel, S. Reick, K. Schörner, A. Widera, D. Meschede
Controlled insertion and retrieval of atoms coupled to a high-finesse optical resonator — New J. Phys. 10 073023 (2008)

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51. G. Sagué, E. Vetsch, W. Alt, D. Meschede, A. Rauschenbeutel
Cold-Atom Physics Using Ultrathin Optical Fibers: Light-Induced Dipole Forces and Surface Interactions — Phys. Rev. Lett. 99 163602 (2007)

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52. Y. Miroshnychenko, W. Alt, I. Dotsenko, L. Förster, M. Khudaverdyan, D. Meschede, S. Reick, A. Rauschenbeutel
Inserting two atoms into a single optical micropotential — Phys. Rev. Lett. 97 243003 (2006)

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53. Y. Miroshnychenko, W. Alt, I. Dotsenko, L. Förster, M. Khudaverdyan, D. Meschede, D. Schrader, A. Rauschenbeutel
An atom-sorting machine — Nature 442 151 (2006)

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54. Y. Miroshnychenko, W. Alt, I. Dotsenko, L. Förster, M. Khudaverdyan, A. Rauschenbeutel, D. Meschede
Precision preparation of strings of trapped neutral atoms — New J. Phys. 8 191 (2006)

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55. L. Förster, W. Alt, I. Dotsenko, M. Khudaverdyan, D. Meschede, Y. Miroshnychenko, S. Reick, A. Rauschenbeutel
Number-triggered loading and collisional redistribution of neutral atoms in a standing wave dipole trap — New J. Phys. 8 259 (2006)

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56. S. Kuhr, W. Alt, D. Schrader, I. Dotsenko, Y. Miroshnychenko, A. Rauschenbeutel, D. Meschede
Analysis of dephasing mechanisms in a standing-wave dipole trap — Phys. Rev. A 72 023406 (2005)

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57. M. Khudaverdyan, W. Alt, I. Dotsenko, L. Förster, S. Kuhr, D. Meschede, Y. Miroshnychenko, D. Schrader, A. Rauschenbeutel
Adiabatic Quantum State Manipulation of Single Trapped Atoms — Phys. Rev. A 71 031404 (2005)

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58. I. Dotsenko, W. Alt, M. Khudaverdyan, S. Kuhr, D. Meschede, Y. Miroshnychenko, D. Schrader, A. Rauschenbeutel
Submicrometer position control of single trapped neutral atoms — Phys. Rev. Lett. 95 033002 (2005)

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59. I. Dotsenko, W. Alt, S. Kuhr, D. Schrader, M. Müller, Y. Miroshnychenko, V. Gomer, A. Rauschenbeutel, D. Meschede
Application of electro-optically generated light fields for Raman spectroscopy of trapped Cesium atoms — Appl. Phys. B 78 711-717 (2004)

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60. D. Schrader, S. Kuhr, W. Alt, Y. Miroshnychenko, I. Dotsenko, W. Rosenfeld, M. Khudaverdyan, V. Gomer, A. Rauschenbeutel, D. Meschede
Controlled transport of single neutral atom qubits — Proceedings of the 16th ICOLS (2003)

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61. Y. Miroshnychenko, D. Schrader, S. Kuhr, W. Alt, I. Dotsenko, M. Khudaverdyan, A. Rauschenbeutel, D. Meschede
Continued imaging of the transport of a single neutral atom — Opt. Express 11 3498-3502 (2003)

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62. S. Kuhr, W. Alt, D. Schrader, I. Dotsenko, Y. Miroshnychenko, W. Rosenfeld, M. Khudaverdyan, V. Gomer, A. Rauschenbeutel, D. Meschede
Coherence properties and quantum state transportation in an optical conveyor belt — Phys. Rev. Lett. 91 213002 (2003)

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63. W. Alt, D. Schrader, S. Kuhr, M. Müller, V. Gomer, D. Meschede
Single atoms in a standing-wave dipole trap — Phys. Rev. A 67 033403 (2003)

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64. W. Alt
An objective lens for efficient fluoresence detection of single atoms — Optik 113 142 (2002)

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65. D. Schrader, S. Kuhr, W. Alt, M. Müller, V. Gomer, D. Meschede
An optical conveyor belt for single neutral atoms — Appl. Phys. B 73 819 (2001)

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66. S. Kuhr, W. Alt, D. Schrader, M. Müller, V. Gomer, D. Meschede
Deterministic Delivery of a Single Atom — Science 293 278 (2001)

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67. D. Frese, B. Ueberholz, S. Kuhr, W. Alt, D. Schrader, V. Gomer, D. Meschede
Single Atoms in an Optical Dipole Trap: Towards a Deterministic Source of Cold Atoms — Phys. Rev. Lett. 85 3777 (2000)

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Dr. Wolfgang Alt

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