Prof. Dr. Arno Rauschenbeutel

Profil

• Auf Atomdampf basierende Drehkreuzvorrichtung für einzelne Photonen

  Quelle ↗

  Förderer: Horizon 2020: Individual Fellowship EU (IF-EU) Zeitraum: 06/2021 - 06/2023 Projektleitung: Prof. Dr. Arno Rauschenbeutel

• AvH-Professur: Arno Rauschenbeutel (Quantum Optics)

  Quelle ↗

  Förderer: Alexander von Humboldt-Stiftung Zeitraum: 04/2018 - 06/2026 Projektleitung: Prof. Dr. Arno Rauschenbeutel

• Einstein Research Unit - Teilprojekt P12 "Distributing quantum information with an atomic vapor-based quantum light source"

  Quelle ↗

  Förderer: ESB: Berlin University Alliance Zeitraum: 10/2021 - 09/2024 Projektleitung: Prof. Dr. Arno Rauschenbeutel

• EMphoQ – Erzeugung von Multiphotonenzuständen für die Quantenkommunikation

  Quelle ↗

  Förderer: Bundesministerium für Forschung, Technologie und Raumfahrt Zeitraum: 01/2026 - 03/2027 Projektleitung: Prof. Dr. Arno Rauschenbeutel

• EU: Disruptive Approaches to Atom-Light Interfaces (DAALI)

  Quelle ↗

  Förderer: Horizon 2020: Research and Innovation Action (RIA) Zeitraum: 10/2020 - 09/2024 Projektleitung: Prof. Dr. Arno Rauschenbeutel

• EU: Error-Proof Optical Bell-State Analyser (ErBeStA)

  Quelle ↗

  Förderer: Horizon 2020: Research and Innovation Action (RIA) Zeitraum: 07/2018 - 06/2022 Projektleitung: Prof. Dr. Arno Rauschenbeutel

• EU: Exponentially Improved Quantum Memory (ExIQ)

  Quelle ↗

  Förderer: Horizon 2020: Individual Fellowship EU (IF-EU) Zeitraum: 06/2020 - 06/2022 Projektleitung: Prof. Dr. Arno Rauschenbeutel

• GREENing the future of quantum optics and integrated nanoPHOtoNics (QO-IN), one lab at the time

  Quelle ↗

  Förderer: Volkswagen Stiftung Zeitraum: 09/2024 - 08/2026 Projektleitung: Prof. Dr. Arno Rauschenbeutel, Dr. Sofia Pazzagli

• Hocheffiziente integrierte auf atomare und molekulare Übergänge abgestimmte Einzelphotonenquellen

  Quelle ↗

  Förderer: ESB: Berlin University Alliance Zeitraum: 10/2021 - 09/2024 Projektleitung: Prof. Dr. Arno Rauschenbeutel

• Superatom Waveguide Quantum Electrodynamics (SuperWave)

  Quelle ↗

  Förderer: Horizon Europe: ERC Synergy Grant Zeitraum: 11/2023 - 10/2029 Projektleitung: Prof. Dr. Arno Rauschenbeutel

• Muquans

  KPT

  136 Treffer85.0%
  • EU: Disruptive Approaches to Atom-Light Interfaces (DAALI)
    K

    85.0%

• InnovationLab GmbH

  P

  177 Treffer62.5%
  • Interfaces in opto-electronic thin film multilayer devices
    P

    62.5%

• Asociación Centro de Investigación Cooperativa en Nanociencia – CIC nanoGUNE

  PT

  132 Treffer60.0%
  • DYnamic control in hybrid plasmonic NAnopores: road to next generation multiplexed single MOlecule detection
    P

    60.0%

• SoftBank Robotics

  P

  55 Treffer59.3%
  • Embodied Audition for RobotS
    P

    59.3%

• Berliner Senatsverwaltung für Bildung, Jugend und Familie

  PT

  13 Treffer59.2%
  • Begleitforschung zum Berliner Schulversuch Hybridunterricht
    P

    59.2%

• Science & Startups Berlin

  T

  10 Treffer57.1%
  • Zuwendung im Rahmen des Programms „exist – Existenzgründungen aus der Wissenschaft“ aus dem Bundeshaushalt, Einzelplan 09, Kapitel 02, Titel 68607, Haushaltsjahr 2026, sowie aus Mitteln des Europäischen Strukturfonds (hier Euro-päischer Sozialfonds Plus – ESF Plus) Förderperiode 2021-2027 – Kofinanzierung für das Vorhaben: „exist Women“
    T

    57.1%

• Solectrix GmbH

  PT

  111 Treffer56.9%
  • QUIN: Quanten-OCT keramischer und polymerer Werkstoffe mit verschränkten Photonen im mittleren Infrarot
    P

    56.9%

• NELA Brüder Neumeister GmbH

  PT

  113 Treffer56.9%
  • QUIN: Quanten-OCT keramischer und polymerer Werkstoffe mit verschränkten Photonen im mittleren Infrarot
    P

    56.9%

• Europäische Kommission

  P

  3 Treffer56.3%
  • Generalized Quatum Batalin-Vilkovisky Formalism and Graphical Calculus
    P

    56.3%

• ON Semiconductor Belgium BVBA

  P

  97 Treffer56.1%
  • Lösung gekoppelter Probleme in der Nanoelektronik (nanoCOPS)
    P

    56.1%

• Chiral quantum optics

  2017

  Nature · 1569 Zitationen · DOI

• Optical Interface Created by Laser-Cooled Atoms Trapped in the Evanescent Field Surrounding an Optical Nanofiber

  2010

  Physical Review Letters · 812 Zitationen · DOI

  Trapping and optically interfacing laser-cooled neutral atoms are essential requirements for their use in advanced quantum technologies. Here we simultaneously realize both of these tasks with cesium atoms interacting with a multicolor evanescent field surrounding an optical nanofiber. The atoms are localized in a one-dimensional optical lattice about 200 nm above the nanofiber surface and can be efficiently interrogated with a resonant light field sent through the nanofiber. Our technique opens the route towards the direct integration of laser-cooled atomic ensembles within fiber networks, an important prerequisite for large scale quantum communication schemes. Moreover, it is ideally suited to the realization of hybrid quantum systems that combine atoms with, e.g., solid state quantum devices.

• Chiral nanophotonic waveguide interface based on spin-orbit interaction of light

  2014

  Science · 792 Zitationen · DOI

  Controlling the flow of light with nanophotonic waveguides has the potential of transforming integrated information processing. Because of the strong transverse confinement of the guided photons, their internal spin and their orbital angular momentum get coupled. Using this spin-orbit interaction of light, we break the mirror symmetry of the scattering of light with a gold nanoparticle on the surface of a nanophotonic waveguide and realize a chiral waveguide coupler in which the handedness of the incident light determines the propagation direction in the waveguide. We control the directionality of the scattering process and can direct up to 94% of the incoupled light into a given direction. Our approach allows for the control and manipulation of light in optical waveguides and new designs of optical sensors.

• Step-by-Step Engineered Multiparticle Entanglement

  2000

  Science · 644 Zitationen · DOI

  After quantum particles have interacted, they generally remain in an entangled state and are correlated at a distance by quantum-mechanical links that can be used to transmit and process information in nonclassical ways. This implies programmable sequences of operations to generate and analyze the entanglement of complex systems. We have demonstrated such a procedure for two atoms and a single-photon cavity mode, engineering and analyzing a three-particle entangled state by a succession of controlled steps that address the particles individually. This entangling procedure can, in principle, operate on larger numbers of particles, opening new perspectives for fundamental tests of quantum theory.

• Coherent Operation of a Tunable Quantum Phase Gate in Cavity QED

  1999

  Physical Review Letters · 517 Zitationen · DOI

  We have realized a quantum phase gate operating on quantum bits carried by a single Rydberg atom and a zero- or one-photon field in a high- $Q$ cavity. The gate operation is based on the dephasing of the atom-field state produced by a full cycle of quantum Rabi oscillation. The dephasing angle, conditioned to the initial atom-field state, can be adjusted over a wide range by tuning the atom-cavity frequency difference. We demonstrate that the gate preserves qubit coherence and generates entanglement. This gate is an essential tool for the nondestructive measurement of single photons and for the manipulation of many-qubit entanglement in cavity QED.

• Seeing a single photon without destroying it

  1999

  Nature · 435 Zitationen · DOI

• Quantum state-controlled directional spontaneous emission of photons into a nanophotonic waveguide

  2014

  Nature Communications · 420 Zitationen · DOI

  The spin of light in subwavelength-diameter waveguides can be orthogonal to the propagation direction of the photons because of the strong transverse confinement. This transverse spin changes sign when the direction of propagation is reversed. Using this effect, we demonstrate the directional spontaneous emission of photons by laser-trapped caesium atoms into an optical nanofibre and control their propagation direction by the excited state of the atomic emitters. In particular, we tune the spontaneous emission into the counter-propagating guided modes from symmetric to strongly asymmetric, where more than % of the optical power is launched into one or the other direction. We expect our results to have important implications for research in quantum nanophotonics and for implementations of integrated optical signal processing in the quantum regime.

• Ultrahigh-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>Q</mml:mi></mml:math>Tunable Whispering-Gallery-Mode Microresonator

  2009

  Physical Review Letters · 360 Zitationen · DOI

  Typical microresonators exhibit a large frequency spacing between resonances and a limited tunability. This impedes their use in a large class of applications which require a resonance of the microresonator to coincide with a predetermined frequency. Here, we experimentally overcome this limitation with highly prolate-shaped whispering-gallery-mode "bottle microresonators" fabricated from standard optical glass fibers. Our resonators combine an ultrahigh quality factor of 3.6 x 10(8), a small mode volume, and near-lossless fiber coupling, characteristic of whispering-gallery-mode resonators, with a simple and customizable mode structure enabling full tunability.

• Strong Coupling between Single Atoms and Nontransversal Photons

  2013

  Physical Review Letters · 301 Zitationen · DOI

  Light is often described as a fully transverse-polarized wave, i.e., with an electric field vector that is orthogonal to the direction of propagation. However, light confined in dielectric structures such as optical waveguides or whispering-gallery-mode microresonators can have a strong longitudinal polarization component. Here, using single (85)Rb atoms strongly coupled to a whispering-gallery-mode microresonator, we experimentally and theoretically demonstrate that the presence of this longitudinal polarization fundamentally alters the interaction between light and matter.

• Nanophotonic Optical Isolator Controlled by the Internal State of Cold Atoms

  2015

  Physical Review X · 291 Zitationen · DOI

  The realization of nanophotonic optical isolators with high optical isolation even at ultralow light levels and low optical losses is an open problem. Here, we employ the link between the local polarization of strongly confined light and its direction of propagation to realize low-loss nonreciprocal transmission through a silica nanofiber at the single-photon level. The direction of the resulting optical isolator is controlled by the spin state of cold atoms. We perform our experiment in two qualitatively different regimes, i.e., with an ensemble of cold atoms where each atom is weakly coupled to the waveguide and with a single atom strongly coupled to the waveguide mode. In both cases, we observe simultaneously high isolation and high forward transmission. The isolator concept constitutes a nanoscale quantum optical analog of microwave ferrite resonance isolators, can be implemented with all kinds of optical waveguides and emitters, and might enable novel integrated optical devices for fiber-based classical and quantum networks.

• Neutral Atom Quantum Register

  2004

  Physical Review Letters · 270 Zitationen · DOI

  We demonstrate the realization of a quantum register using a string of single neutral atoms which are trapped in an optical dipole trap. The atoms are selectively and coherently manipulated in a magnetic field gradient using microwave radiation. Our addressing scheme operates with a high spatial resolution, and qubit rotations on individual atoms are performed with 99% contrast. In a final readout operation we analyze each individual atomic state. Finally, we have measured the coherence time and identified the predominant dephasing mechanism for our register.

• Controlled entanglement of two field modes in a cavity quantum electrodynamics experiment

  2001

  Physical Review A · 252 Zitationen · DOI

  Using a single circular Rydberg atom, we have prepared two modes of a superconducting cavity in a maximally entangled state. The two modes share a single photon. The entanglement is revealed by a second atom probing the correlations between the two modes after a delay. This experiment opens interesting perspectives for quantum information manipulation and fundamental tests of quantum theory.

• A complementarity experiment with an interferometer at the quantum–classical boundary

  2001

  Nature · 215 Zitationen · DOI

• Fiber-Optical Switch Controlled by a Single Atom

  2013

  Physical Review Letters · 194 Zitationen · DOI

  We demonstrate highly efficient switching of optical signals between two optical fibers controlled by a single atom. The key element of our experiment is a whispering-gallery-mode bottle microresonator, which is coupled to a single atom and interfaced by two tapered fiber couplers. This system reaches the strong coupling regime of cavity quantum electrodynamics, leading to a vacuum Rabi splitting in the excitation spectrum. We systematically investigate the switching efficiency of our system, i.e., the probability that the fiber-optical switch redirects the light into the desired output. We obtain a large redirection efficiency reaching a raw fidelity of more than 60% without postselection. Moreover, by measuring the second-order correlation functions of the output fields, we show that our switch exhibits a photon-number-dependent routing capability.

• Tunable whispering-gallery-mode resonators for cavity quantum electrodynamics

  2005

  Physical Review A · 177 Zitationen · DOI

  We theoretically study the properties of highly prolate-shaped dielectric microresonators. Such resonators sustain whispering-gallery modes that exhibit two spatially well-separated regions with enhanced field strength. The field per photon on the resonator surface is significantly higher than, e.g., for equatorial whispering-gallery modes in microsphere resonators with a comparable mode volume. At the same time, the frequency spacing of these modes is much more favorable, so that a tuning range of several free spectral ranges should be attainable. We discuss the possible application of such resonators for cavity quantum electrodynamics experiments with neutral atoms and reveal distinct advantages with respect to existing concepts.

• Analysis of dephasing mechanisms in a standing-wave dipole trap

  2005

  Physical Review A · 175 Zitationen · DOI

  We study in detail the mechanisms causing dephasing of hyperfine coherences of cesium atoms confined by a far-off-resonant standing-wave optical dipole trap [S. Kuhr et al., Phys. Rev. Lett. 91, 213002 (2003)]. Using Ramsey-spectroscopy and spin-echo techniques, we measure the reversible and irreversible dephasing times of the ground-state coherences. We present an analytical model to interpret the experimental data and identify the homogeneous and inhomogeneous dephasing mechanisms. Our scheme to prepare and detect the atomic hyperfine state is applied at the level of a single atom as well as for ensembles of up to 50 atoms.

• Cold-Atom Physics Using Ultrathin Optical Fibers: Light-Induced Dipole Forces and Surface Interactions

  2007

  Physical Review Letters · 171 Zitationen · DOI

  The strong evanescent field around ultrathin unclad optical fibers bears a high potential for detecting, trapping, and manipulating cold atoms. Introducing such a fiber into a cold-atom cloud, we investigate the interaction of a small number of cold cesium atoms with the guided fiber mode and with the fiber surface. Using high resolution spectroscopy, we observe and analyze light-induced dipole forces, van der Waals interaction, and a significant enhancement of the spontaneous emission rate of the atoms. The latter can be assigned to the modification of the vacuum modes by the fiber.

• Nonlinear π phase shift for single fibre-guided photons interacting with a single resonator-enhanced atom

  2014

  Nature Photonics · 144 Zitationen · DOI

• Coherence Properties and Quantum State Transportation in an Optical Conveyor Belt

  2003

  Physical Review Letters · 139 Zitationen · DOI

  We have prepared and detected quantum coherences of trapped cesium atoms with long dephasing times. Controlled transport by an "optical conveyor belt" over macroscopic distances preserves the atomic coherence with slight reduction of coherence time. The limiting dephasing effects are experimentally identified, and we present an analytical model of the reversible and irreversible dephasing mechanisms. Our experimental methods are applicable at the single-atom level. Coherent quantum bit operations along with quantum state transport open the route towards a "quantum shift register" of individual neutral atoms.

• Ultra-sensitive surface absorption spectroscopy using sub-wavelength diameter optical fibers

  2007

  Optics Express · 138 Zitationen · DOI

  The guided modes of sub-wavelength diameter air-clad optical fibers exhibit a pronounced evanescent field. The absorption of particles on the fiber surface is therefore readily detected via the fiber transmission. We show that the resulting absorption for a given surface coverage can be orders of magnitude higher than for conventional surface spectroscopy. As a demonstration, we present measurements on sub-monolayers of 3,4,9,10-perylene-tetracarboxylic dianhydride (PTCDA) molecules at ambient conditions, revealing the agglomeration dynamics on a second to minutes timescale.

• An atom-sorting machine

  2006

  Nature · 132 Zitationen · DOI

• Tapered fiber coupling of single photons emitted by a deterministically positioned single nitrogen vacancy center

  2014

  Applied Physics Letters · 126 Zitationen · DOI

  A diamond nano-crystal hosting a single nitrogen vacancy (NV) center is optically selected with a confocal scanning microscope and positioned deterministically onto the subwavelength-diameter waist of a tapered optical fiber (TOF) with the help of an atomic force microscope. Based on this nano-manipulation technique, we experimentally demonstrate the evanescent coupling of single fluorescence photons emitted by a single NV-center to the guided mode of the TOF. By comparing photon count rates of the fiber-guided and the free-space modes and with the help of numerical finite-difference time domain simulations, we determine a lower and upper bound for the coupling efficiency of (9.5 ± 0.6)% and (10.4 ± 0.7)%, respectively. Our results are a promising starting point for future integration of single photon sources into photonic quantum networks and applications in quantum information science.

• All-optical signal processing at ultra-low powers in bottle microresonators using the Kerr effect

  2010

  Optics Express · 121 Zitationen · DOI

  We present experimental results on nonlinear, ultra-low power photonics applications based on a silica whispering-gallery-mode microresonator. Our bottle microresonator combines an ultrahigh quality factor of Q > 10(8) with a small mode volume V. The resulting Q(2)/V-ratio is among the highest realized for optical microresonators and allows us to observe bistable behavior at very low powers. We report single-wavelength all-optical switching via the Kerr effect at a record-low threshold of 50 microW. Moreover, an advantageous mode geometry enables the coupling of two tapered fiber waveguides to a bottle mode in an add-drop configuration. This allows us to route a CW optical signal between both fiber outputs with high efficiency by varying its power level. Finally, we demonstrate that the same set-up can also be operated as an optical memory.

• Roadmap on structured waves

  2023

  Journal of Optics · 117 Zitationen · DOI

  Abstract Structured waves are ubiquitous for all areas of wave physics, both classical and quantum, where the wavefields are inhomogeneous and cannot be approximated by a single plane wave. Even the interference of two plane waves, or of a single inhomogeneous (evanescent) wave, provides a number of nontrivial phenomena and additional functionalities as compared to a single plane wave. Complex wavefields with inhomogeneities in the amplitude, phase, and polarization, including topological structures and singularities, underpin modern nanooptics and photonics, yet they are equally important, e.g. for quantum matter waves, acoustics, water waves, etc. Structured waves are crucial in optical and electron microscopy, wave propagation and scattering, imaging, communications, quantum optics, topological and non-Hermitian wave systems, quantum condensed-matter systems, optomechanics, plasmonics and metamaterials, optical and acoustic manipulation, and so forth. This Roadmap is written collectively by prominent researchers and aims to survey the role of structured waves in various areas of wave physics. Providing background, current research, and anticipating future developments, it will be of interest to a wide cross-disciplinary audience.

• Measurement of a negative value for the Wigner function of radiation

  2000

  Physical Review A · 114 Zitationen · DOI

  Following a proposal by two of us [L. G. Lutterbach and L. Davidovich, Phys. Rev. Lett. 78, 2547 (1997)], we have measured the Wigner function at the origin of phase space for a single photon field. Its value is negative, exhibiting the nonclassical nature of this state. The experiment is based on the absorption-free detection of the microwave field stored in a superconducting cavity [G. Nogues et al., Nature (London) 400, 239 (1999)]. Extension to a measurement of the Wigner function over the complete phase space is discussed.

• Centre national de la recherche scientifique

  EU: Disruptive Approaches to Atom-Light Interfaces (DAALI)

  other

• Charité – Universitätsmedizin Berlin

  Hocheffiziente integrierte auf atomare und molekulare Übergänge abgestimmte Einzelphotonenquellen

  university

• Eberhard Karls Universität Tübingen

  EU: Error-Proof Optical Bell-State Analyser (ErBeStA)

  university

• Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik, Berlin-Adlershof

  EU: Error-Proof Optical Bell-State Analyser (ErBeStA)

  other

• Forschungsverbund Berlin e.V.

  EU: Error-Proof Optical Bell-State Analyser (ErBeStA)

  other

• Freie Universität Berlin

  Hocheffiziente integrierte auf atomare und molekulare Übergänge abgestimmte Einzelphotonenquellen

  university

• Fundacio Institut de Ciencies Fotoniques

  EU: Disruptive Approaches to Atom-Light Interfaces (DAALI)

  other

• Muquans

  EU: Disruptive Approaches to Atom-Light Interfaces (DAALI)

  other

• Rheinische Friedrich-Wilhelms-Universität Bonn

  Superatom Waveguide Quantum Electrodynamics (SuperWave)

  university

• Sorbonne Université

  EU: Disruptive Approaches to Atom-Light Interfaces (DAALI)

  university

• Syddansk Universitet

  EU: Error-Proof Optical Bell-State Analyser (ErBeStA)

  university

• Technische Universität Berlin

  Hocheffiziente integrierte auf atomare und molekulare Übergänge abgestimmte Einzelphotonenquellen

  university

• Technische Universität Wien

  EU: Error-Proof Optical Bell-State Analyser (ErBeStA)

  university

• Universität Aarhus

  Superatom Waveguide Quantum Electrodynamics (SuperWave)

  university

• Universität Nottingham

  EU: Error-Proof Optical Bell-State Analyser (ErBeStA)

  university

• Universität Rostock

  EU: Error-Proof Optical Bell-State Analyser (ErBeStA)

  university

• Universität Wien

  EU: Error-Proof Optical Bell-State Analyser (ErBeStA)

  university

• Weizmann-Institut für Wissenschaften

  EU: Disruptive Approaches to Atom-Light Interfaces (DAALI)

  research_institute

Name

Prof. Dr. Arno Rauschenbeutel

Titel

Prof. Dr.

Fakultät

Mathematisch-Naturwissenschaftliche Fakultät

Institut

Institut für Physik

Arbeitsgruppe

Grundlagen der Optik und Photonik

Telefon

+49 30 2093-82152

HU-FIS-Profil

Quelle ↗

Zuletzt gescrapt

26.4.2026, 01:10:46