A5078130439- Cold Atom Physics and Bose-Einstein Condensates
- Advanced Frequency and Time Standards
- Atomic and Subatomic Physics Research
- Quantum Mechanics and Applications
- Quantum Information and Cryptography
- Advanced Materials Characterization Techniques
- Distributed systems and fault tolerance
- Laser-induced spectroscopy and plasma
- Planetary Science and Exploration
- Mechanical and Optical Resonators
- Distributed and Parallel Computing Systems
- Geophysics and Sensor Technology
- Microfluidic and Bio-sensing Technologies
- Neural Networks and Applications
- Photonic and Optical Devices
- Force Microscopy Techniques and Applications
- Experimental and Theoretical Physics Studies
- Advanced Thermodynamics and Statistical Mechanics
- Spacecraft and Cryogenic Technologies
- Plasma and Flow Control in Aerodynamics
- Atomic and Molecular Physics
- Noncommutative and Quantum Gravity Theories
- Advanced Memory and Neural Computing
- Aerosol Filtration and Electrostatic Precipitation
- Dark Matter and Cosmic Phenomena
Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR)
2021-2023
University of Bremen
2009-2021
SpaceTech (Germany)
2010
Atom interferometers covering macroscopic domains of space-time are a spectacular manifestation the wave nature matter. Because their unique coherence properties, Bose-Einstein condensates ideal sources for an atom interferometer in extended free fall. In this Letter we report on realization asymmetric Mach-Zehnder operated with condensate microgravity. The resulting interference pattern is similar to one far field double slit and shows linear scaling time packets expand. We employ...
Albert Einstein's insight that it is impossible to distinguish a local experiment in "freely falling elevator" from one free space led the development of theory general relativity. The wave nature matter manifests itself striking way Bose-Einstein condensates, where millions atoms lose their identity and can be described by single macroscopic function. We combine these two topics report preparation observation condensate during fall 146-meter-tall evacuated drop tower. During expansion over...
We demonstrate a quantum gravimeter by combining the advantages of an atom chip for generation, delta-kick collimation, and coherent manipulation freely falling Bose-Einstein condensates (BECs) with innovative launch mechanism based on Bloch oscillations double Bragg diffraction. Our high-contrast BEC interferometer realizes tens milliseconds free fall in volume as little one centimeter cube paves way measurements sub-μGal accuracies miniaturized, robust devices.Received 13 May...
Inertial sensors based on cold atoms have great potential for navigation, geodesy, or fundamental physics. Similar to the Sagnac effect, their sensitivity increases with space-time area enclosed by interferometer. Here, we introduce twin-lattice atom interferometry exploiting Bose-Einstein condensates. Our method provides symmetric momentum transfer and large areas in palm-sized sensor heads a performance similar present meter-scale devices.
Quantum sensors based on coherent matter-waves are precise measurement devices whose ultimate accuracy is achieved with Bose–Einstein condensates (BECs) in extended free fall. This ideally realized microgravity environments such as drop towers, ballistic rockets and space platforms. However, the transition from lab-based BEC machines to robust mobile sources comparable performance a challenging endeavor. Here we report realization of miniaturized setup, generating flux quantum degenerate...
We employ light-induced double Bragg diffraction of delta-kick collimated Bose-Einstein condensates to create three symmetric Mach-Zehnder interferometers. They rely on (i) first-order, (ii) two successive and (iii) second-order processes which demonstrate the scalability corresponding momentum transfer. With respect devices based conventional scattering, these interferometers scale factor feature a better suppression noise systematic uncertainties intrinsic process. Moreover, we utilize as...
Microgravity eases several constraints limiting experiments with ultracold and condensed atoms on ground. It enables extended times of flight without suspension eliminates the gravitational sag for trapped atoms. These advantages motivated numerous initiatives to adapt operate experimental setups microgravity platforms. We describe design payload, motivations choices, capabilities Bose-Einstein Condensate Cold Atom Laboratory (BECCAL), a NASA-DLR collaboration. BECCAL builds heritage...
Using physical systems as the resource for computation in reservoir computing has two prominent reasons: high dimensional state space and its intrinsic non-linear dynamics. Quantum specifically promise even further improvements to their classical pendants, offering an exponentially scaling with respect system size. How this reflects actual performance of quantum mechanical computer remains, however, unclear. methods from field parameterized cirucits, we show that expressive power a is...
Abstract We report on the design and construction of a sounding rocket payload capable performing atom interferometry with Bose-Einstein condensates $$^{41}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msup><mml:mrow/><mml:mn>41</mml:mn></mml:msup></mml:math> K $$^{87}$$ xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msup><mml:mrow/><mml:mn>87</mml:mn></mml:msup></mml:math> Rb. The apparatus is designed to be launched in two consecutive missions VSB-30 qualified...
Bose-Einstein condensates (BECs) in free fall constitute a promising source for space-borne matter-wave interferometry. Indeed, BECs enjoy slowly expanding wave function, display large spatial coherence and can be engineered probed by optical techniques. On sounding rocket, we explore fringes of multiple spinor components BEC released employing light-pulses to drive Bragg processes induce phase imprinting. The prevailing microgravity played crucial role the observation these interferences...
This paper presents the software responsible for design and execution of experiments in Bose-Einstein Condensate Cold Atom Laboratory (BECCAL) mission, an experiment with ultra-cold condensed atoms on International Space Station. The consists two parts: control tools. first corresponds to running payload is charge controlling executing experiments, while latter are tools used by scientists create definition that will be later uploaded instrument executed. To overcome challenge developing...
Today's space missions and projects dealing with cutting-edge technologies often lead to the development of highly complex systems. To ensure fulfillment mission goals, these require support adequate software tools that are capable various project management tasks. However, due their high cost inflexibility, existing not always well suited for operation in field research. We seek fill this gap by developing a new suite at Institute Satellite Geodesy Inertial Sensing German Aerospace Center...
We report on the design and construction of a sounding rocket payload capable performing atom interferometry with Bose-Einstein condensates $^{41}$K $^{87}$Rb. The apparatus is designed to be launched in two consecutive missions VSB-30 qualified withstand expected vibrational loads 1.8 g root-mean-square frequency range between 20 - 2000 Hz static during ascent re-entry 25 g. present modular scientific comprising physics package, laser system, an electronics system battery module. A...
Summary form only given. Bose Einstein condensates (BEC) opened the way for realization of atomic ensembles with Heisenberg limited uncertainty. In microgravity extremely dilute samples BEC can be obtained and observed after a free evolution on timescales seconds. Applications range from atom optics to matter wave interferometry. This has led us realize 10000 87Rb atoms in microgravity. The experimental results (to published) establish fact, that environment ultra-large (Icircosl.5 mm) 1...