A5008756245- Cold Atom Physics and Bose-Einstein Condensates
- Atomic and Subatomic Physics Research
- Advanced Frequency and Time Standards
- Drilling and Well Engineering
- Hydraulic Fracturing and Reservoir Analysis
- Nonlinear Photonic Systems
- Nonlinear Dynamics and Pattern Formation
- Quantum Mechanics and Applications
- Quantum, superfluid, helium dynamics
- Seismic Imaging and Inversion Techniques
- Strong Light-Matter Interactions
- Reservoir Engineering and Simulation Methods
- Advanced Fiber Laser Technologies
- Microfluidic and Capillary Electrophoresis Applications
- Tunneling and Rock Mechanics
- Theoretical and Computational Physics
- Spectroscopy and Laser Applications
- Quantum Electrodynamics and Casimir Effect
- Oil and Gas Production Techniques
- Hydrocarbon exploration and reservoir analysis
- Orbital Angular Momentum in Optics
- Microfluidic and Bio-sensing Technologies
- Quantum Information and Cryptography
- Matrix Theory and Algorithms
- Analytical Chemistry and Sensors
Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR)
2021-2025
Quantum Technologies (Sweden)
2023
Universität Ulm
2017-2021
Center for Integrated Quantum Science and Technology
2017-2021
Jet Propulsion Laboratory
2021
Baker Hughes (United States)
2004-2017
Institute for Bioprocessing and Analytical Measurement Techniques
2012-2013
Queen's University Belfast
2005
Universidad Complutense de Madrid
2004
Universidad de Zaragoza
2003
Ultracold quantum gases are ideal sources for high-precision space-borne sensing as proposed Earth observation, relativistic geodesy and tests of fundamental physical laws well studying new phenomena in many-body physics during extended free fall. Here we report on experiments with the Cold Atom Lab aboard International Space Station, where have achieved exquisite control over state single 87Rb Bose-Einstein condensates paving way future measurements. In particular, applied fast transport...
Abstract Progress in understanding quantum systems has been driven by the exploration of geometry, topology, and dimensionality ultracold atomic systems. The NASA Cold Atom Laboratory (CAL) aboard International Space Station enabled study bubbles, a terrestrially-inaccessible topology. Proof-of-principle bubble experiments have performed on CAL with an radiofrequency-dressing technique; alternate technique (dual-species interaction-driven bubbles) also proposed. Both techniques can drive...
Deployment of ultracold atom interferometers (AI) into space will capitalize on quantum advantages and the extended freefall persistent microgravity to provide high-precision measurement capabilities for gravitational, Earth, planetary sciences, enable searches subtle forces signifying physics beyond General Relativity Standard Model. NASA's Cold Atom Lab (CAL) operates onboard International Space Station as a multi-user facility fundamental studies atoms mature space-based technologies. We...
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...
Abstract Investigating and verifying the connections between foundations of quantum mechanics general relativity will require extremely sensitive experiments. To provide ultimate insight into this fascinating area physics, realization dedicated experiments in space sooner or later become a necessity. Quantum technologies, among them memories particular, are providing novel approaches to reach conclusive experimental results due their advanced state development backed by decades progress....
Ultracold quantum gases confined in three-dimensional bubble traps are promising tools for exploring many-body effects on curved manifolds. As an alternative to the conventional technique of radio-frequency dressing, we propose create such shell-shaped Bose-Einstein condensates microgravity based dual-species atomic mixtures and analyze their properties as well feasibility realize symmetrically filled shells. Beyond similarities with dressing method collective-excitation spectrum, our...
The nonlinear Schrödinger equation (NLSE) in one spatial dimension has stationary solutions similar to those of the linear (LSE) as well more exotic such solitary waves and quantum droplets. Here, we present a newly discovered conformal duality which unifies time-dependent traveling-wave one-dimensional cubic-quintic NLSE, cubic NLSE LSE. Any two systems that are classified by same single number called cross ratio related this symmetry. Notably, can also be adapted Newtonian mechanics serves...
Motivated by the recent experimental realization of ultracold quantum gases in shell topology, we propose a straightforward implementation matter-wave lensing techniques for shell-shaped Bose-Einstein condensates. This approach allows to significantly extend observation time condensate during its free expansion and enables study novel many-body effects on curved geometries. With both analytical numerical methods derive optimal parameters realistic schemes conserve shape times up hundreds...
The properties of discrete breathers in dissipative one-dimensional lattices nonlinear oscillators subject to periodic driving forces are reviewed. We focus on oscillobreathers the Frenkel-Kontorova chain and rotobreathers a ladder Josephson junctions. Both types exponentially localized solutions easily obtained numerically using adiabatic continuation from anticontinuous limit. Linear stability (Floquet) analysis allows characterization different bifurcations experienced by breathers. Some...
Abstract Microgravity platforms enable cold atom research beyond experiments in typical laboratories by removing restrictions due to the gravitational acceleration or compensation techniques. While space allows for undisturbed experimentation, technological readiness, availability and accessibility present challenges experimental operation. In this work we focus on main capabilities unique features of ground-based microgravity facilities research. A selection current future scientific...
Ultracold atomic gases hold unique promise for space science by capitalizing on quantum advantages and extended freefall, afforded in a microgravity environment, to enable next-generation precision sensors. Atom interferometers are class of sensors which can use freely falling atoms cooled sub-photon-recoil temperatures provide unprecedented sensitivities accelerations, rotations, gravitational forces, currently being developed space-based applications gravitational, earth, planetary...
Abstract Formation pressure testers are utilized to measure formation along a wellbore. From the data reservoir engineers develop information on fluid type, contact depths, and connectivity. Together with recovered samples, these provide crucial exploration development for oil gas fields. Until recently, measurements were performed wireline tools or during production drill stem testing. Notably, methods can only be used after borehole is drilled string pulled out of hole. A...
Abstract The Integrated Under-Reamer (IUR) was developed in 2007 a joint project between an Operator and Service company. tool designed to allow for unlimited opening closing of the provide selective hole unstable formations e.g. shale or swelling salt. Furthermore should be able close pull out (POOH) while keeping circulation continuously on. To accommodate this fully integrated into modular bus structure downhole BHA. Electronics were activate deactivate from downlink commands sent...
Abstract The first formation testing tools were introduced as wireline in the 1950s. Since then, many technological steps achieved, starting with simple sampling devices adding different measurement technologies 1980s up to pressure while drilling (FPWD) field 2000. Over last 20 years technology evolved towards high-quality single-phase that also led development of (FSWD) being just over a year ago. In this paper we present new fluid analysis and tool designed for logging (LWD) applications....
Mixtures of ultracold quantum gases are at the heart high-precision tests weak equivalence principle, where extremely low expansion rates have to be reached with matter-wave lensing techniques. We propose simplify this challenging atom-source preparation by employing magic laser wavelengths for optical potentials which guarantee that all atomic species follow identical trajectories and experience common dynamics. In way, relative shape mixture is conserved during entire evolution while...
Abstract Formation pore pressure is a key parameter for reservoir management in the Troll field. The measurement traditionally performed on wireline time consuming, especially deviated wells. To provide service earlier and more efficiently, formation tester has been developed as part of Logging While Drilling bottom hole assembly. tool measures pressures during brief pauses drilling process by extending pad to borehole wall, forming seal against formation, performing series drawdowns. meet...
Atom laser experiments with Bose-Einstein condensates (BECs) performed in ground-based laboratories feature a coherent and directed beam of atoms which is accelerated by gravity. In microgravity the situation fundamentally different because dynamics entirely determined repulsive interaction between not gravitational force. As result, output space atom spherical wave slowly expanding away from initial BEC.We present thorough theoretical study this new source matter waves based on rf...
Abstract Formation testing tools in wireline operations typically use hydraulic pump systems for fluid cleanup and sampling. As there is an electric connection a communications channel suitable interactive tool operation to the systems, operator interacts continuously with system can adjust parameters downhole conditions. Due low bandwidth of mud pulse this not possible while-drilling environment. Moreover, concept makes precise control nearly impossible. To overcome challenge highly...
Abstract Contamination‐free process measurement is essential for efficient monitoring of fermenters. This contribution introduces the use high‐frequency sensors contactless permittivity and conductivity fermentation media. As microwaves can penetrate through plastic materials without much attenuation, it possible to achieve setups that measure media under test any direct contact with long‐term stability. The sensor be installed directly outer surface fermenter or clamped onto tubing.
We present a highly efficient method for the numerical solution of coupled Gross–Pitaevskii equations describing evolution dynamics multi-species mixture Bose–Einstein condensates in time-dependent potentials. This method, based on moving and expanding reference frame, compares favorably to more standard but much computationally expensive frozen frame. It allows an accurate description long-time behavior interacting, quantum mixtures including challenging problem long free expansions...