Zobrazeno 1 - 10
of 194
pro vyhledávání: '"Ernst M. Rasel"'
Autor:
Jason R. Williams, Charles A. Sackett, Holger Ahlers, David C. Aveline, Patrick Boegel, Sofia Botsi, Eric Charron, Ethan R. Elliott, Naceur Gaaloul, Enno Giese, Waldemar Herr, James R. Kellogg, James M. Kohel, Norman E. Lay, Matthias Meister, Gabriel Müller, Holger Müller, Kamal Oudrhiri, Leah Phillips, Annie Pichery, Ernst M. Rasel, Albert Roura, Matteo Sbroscia, Wolfgang P. Schleich, Christian Schneider, Christian Schubert, Bejoy Sen, Robert J. Thompson, Nicholas P. Bigelow
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-11 (2024)
Abstract Deployment of ultracold atom interferometers (AI) into space will capitalize on quantum advantages and the extended freefall of persistent microgravity to provide high-precision measurement capabilities for gravitational, Earth, and planetar
Externí odkaz:
https://doaj.org/article/829e00c52b584835b71c53c84162cc89
Autor:
Alexander Herbst, Timothé Estrampes, Henning Albers, Robin Corgier, Knut Stolzenberg, Sebastian Bode, Eric Charron, Ernst M. Rasel, Naceur Gaaloul, Dennis Schlippert
Publikováno v:
Communications Physics, Vol 7, Iss 1, Pp 1-8 (2024)
Abstract The sensitivity of atom interferometers depends on their ability to realize long pulse separation times and prevent loss of contrast by limiting the expansion of the atomic ensemble within the interferometer beam through matter-wave collimat
Externí odkaz:
https://doaj.org/article/8ea093e68ecb4705b500c7fdca9a9cf1
Autor:
Benjamin Tennstedt, Ashwin Rajagopalan, Nicolai B. Weddig, Sven Abend, Steffen Schön, Ernst M. Rasel
Publikováno v:
Navigation, Vol 70, Iss 4 (2023)
We present an alternative technique for estimating the response of a cold atom interferometer (CAI). Using data from a conventional inertial measurement unit (IMU) and common strapdown terminology, the position of the atom wave packet is tracked in a
Externí odkaz:
https://doaj.org/article/d1e11d6f5f3845688f90737e84139d8c
Autor:
Naceur Gaaloul, Matthias Meister, Robin Corgier, Annie Pichery, Patrick Boegel, Waldemar Herr, Holger Ahlers, Eric Charron, Jason R. Williams, Robert J. Thompson, Wolfgang P. Schleich, Ernst M. Rasel, Nicholas P. Bigelow
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-9 (2022)
Ultracold ensembles are promising sources for precision measurements when their quantum state can precisely be prepared. Here the authors achieve a quantum state engineering of Bose-Einstein condensates in space using NASA’s Cold Atom Lab aboard th
Externí odkaz:
https://doaj.org/article/22b58b55ebea4ffd9b39439f2339c0e1
Autor:
Henning Albers, Robin Corgier, Alexander Herbst, Ashwin Rajagopalan, Christian Schubert, Christian Vogt, Marian Woltmann, Claus Lämmerzahl, Sven Herrmann, Eric Charron, Wofgang Ertmer, Ernst M. Rasel, Naceur Gaaloul, Dennis Schlippert
Publikováno v:
Communications Physics, Vol 5, Iss 1, Pp 1-7 (2022)
Matter-wave sensors benefit from high flux cold atomic sources. Here, a time-averaged optical dipole trap is reported that generates Bose-Einstein condensates by fast evaporative cooling and further reduces the expansion by means of an all-optical ma
Externí odkaz:
https://doaj.org/article/59a243979d584048a833aa966d24446b
Autor:
Christian Schubert, Sven Abend, Matthias Gersemann, Martina Gebbe, Dennis Schlippert, Peter Berg, Ernst M. Rasel
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
Abstract The sensitivity of light and matter-wave interferometers to rotations is based on the Sagnac effect and increases with the area enclosed by the interferometer. In the case of light, the latter can be enlarged by forming multiple fibre loops,
Externí odkaz:
https://doaj.org/article/dbee783c24fa497490fff2a9ac1a9c03
Autor:
Martina Gebbe, Jan-Niclas Siemß, Matthias Gersemann, Hauke Müntinga, Sven Herrmann, Claus Lämmerzahl, Holger Ahlers, Naceur Gaaloul, Christian Schubert, Klemens Hammerer, Sven Abend, Ernst M. Rasel
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-7 (2021)
Atom interferometers can be useful for precision measurement of fundamental constants and sensors of different type. Here the authors demonstrate a compact twin-lattice atom interferometry exploiting Bose-Einstein condensates (BECs) of 87 Rb atoms.
Externí odkaz:
https://doaj.org/article/c768f2aa556a417c85389016ca457c5a
Autor:
Maike D. Lachmann, Holger Ahlers, Dennis Becker, Aline N. Dinkelaker, Jens Grosse, Ortwin Hellmig, Hauke Müntinga, Vladimir Schkolnik, Stephan T. Seidel, Thijs Wendrich, André Wenzlawski, Benjamin Carrick, Naceur Gaaloul, Daniel Lüdtke, Claus Braxmaier, Wolfgang Ertmer, Markus Krutzik, Claus Lämmerzahl, Achim Peters, Wolfgang P. Schleich, Klaus Sengstock, Andreas Wicht, Patrick Windpassinger, Ernst M. Rasel
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-6 (2021)
Conducting atom-optical experiments in space is interesting for fundamental physics and challenging due to different environment compared to ground. Here the authors report matter-wave interferometry in space using atomic BECs in a sounding rocket.
Externí odkaz:
https://doaj.org/article/6d40f0a021084cc0b6913515def5b59b
Autor:
Florian Fitzek, Jan-Niclas Siemß, Stefan Seckmeyer, Holger Ahlers, Ernst M. Rasel, Klemens Hammerer, Naceur Gaaloul
Publikováno v:
Scientific Reports, Vol 10, Iss 1, Pp 1-17 (2020)
Abstract In this article, we introduce a universal simulation framework covering all regimes of matter-wave light-pulse elastic scattering. Applied to atom interferometry as a study case, this simulator solves the atom-light diffraction problem in th
Externí odkaz:
https://doaj.org/article/1c502128a6814564954be33964d8fe0d
Autor:
Christian Ufrecht, Fabio Di Pumpo, Alexander Friedrich, Albert Roura, Christian Schubert, Dennis Schlippert, Ernst M. Rasel, Wolfgang P. Schleich, Enno Giese
Publikováno v:
Physical Review Research, Vol 2, Iss 4, p 043240 (2020)
Introducing internal-state transitions simultaneously on each branch of a light-pulse atom interferometer, we propose a scheme that is concurrently sensitive to both violations of the universality of free fall and gravitational redshift, two premises
Externí odkaz:
https://doaj.org/article/0e815330aa2346bb979497bb4b553719