Auflistung nach Schlagwort "Bose-Einstein condensates"

Auflistung nach Schlagwort "Bose-Einstein condensates"

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  • Atom interferometry with ultracold atoms for inertial sensing 
    Gersemann, Matthias (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2023)
    In light pulse atom interferometry wave packets are spatially separated and recombined in a coherent manner by interacting with laser pulses. Typically, two photon transitions are used to perform Rabi oscillations between ...
  • Atom-chip gravimeter with Bose-Einstein condensates 
    Abend, Sven (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2017)
    [no abstract]
  • Bose-Einstein condensation of K-41 and Rb-87 on an atom chip for sounding rocket missions 
    Piest, Baptist (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2021)
    Im Rahmen dieser Arbeit wird die atomchipbasierte Experimentierkammer für den Einsatz in den Höhenforschungsraketenmissionen MAIUS-2 und 3 aufgebaut und mit einem bodengestützten System in Betrieb genommen. Die neue ...
  • Creating the first Bose-Einstein condensate in space 
    Lachmann, M.D.; Ahlers, H.; Becker, D.; Seidel, S.T.; Wendrich, T.; Rasel, Ernst Maria; Ertmer, Wolfgang; MAIUS-Team (Bellingham, WA : SPIE - International Society for Optical Engineering, 2018)
    On 23rd of January 2017 the first Bose-Einstein Condensate (BEC) in Space was created on-board the sounding rocket mission MAIUS-1. The successful launch marks a major advancement in the effort of performing matter wave ...
  • Design and construction of a transportable quantum gravimeter and realization of an atom-chip magnetic trap 
    Sahelgozin, Maral (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2019)
    The quantum gravimeter QG-1 is designed to perform local gravity measurements in field with residual uncertainties surpassing state-of-the-art absolute gravimeters. It will use delta-kick collimated Bose-Einstein condensates ...
  • Dipolar Bose-Einstein condensates in optical lattices 
    Łakomy, Kazimierz (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2013)
    [no abstract]
  • Dynamics of Dark Solitons in Elongated Bose-Einstein Condensates 
    Muryshev, A.; Shlyapnikov, G.V.; Ertmer, Wolfgang; Sengstock, K.; Lewenstein, M. (American Physical Society, 2002)
    We find two types of moving dark soliton textures in elongated condensates: nonstationary kinks and proper dark solitons. The latter have a flat notch region and we obtain the diagram of their dynamical stability. At finite ...
  • Experimental setup for fast BEC generation and number-stabilized atomic ensembles 
    Pür, Cebrail (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2022)
    Ultracold atomic ensembles represent a cornerstone of today’s modern quantum experiments. In particular, the generation of Bose-Einstein condensates (BECs) has paved the way for a myriad of fundamental research topics as ...
  • Fast manipulation of Bose-Einstein condensates with an atom chip 
    Corgier, R.; Amri, S.; Herr, W.; Ahlers, H.; Rudolph, J.; Guéry-Odelin, D.; Rasel, Ernst Maria; Charron, E.; Gaaloul, Naceur (Bristol : Institute of Physics Publishing, 2018)
    We present a detailed theoretical analysis of the implementation of shortcut-to-adiabaticity protocols for the fast transport of neutral atoms with atom chips. The objective is to engineer transport ramps with durations ...
  • Hexapole-compensated magneto-optical trap on a mesoscopic atom chip 
    Joellenbeck, S.; Mahnke, J.; Randoll, R.; Ertmer, Wolfgang; Arlt, Jan J.; Klempt, Carsten (College Park : American Physical Society, 2011)
    Magneto-optical traps on atom chips are usually restricted to small atomic samples due to a limited capture volume caused primarily by distorted field configurations. Here we present a magneto-optical trap based on a ...
  • A high-flux BEC source for mobile atom interferometers 
    Rudolph, Jan; Herr, Waldemar; Grzeschik, Christoph; Sternke, Tammo; Grote, Alexander; Popp, Manuel; Becker, Dennis; Muentinga, Hauke; Ahlers, Holger; Peters, Achim; Laemmerzahl, Claus; Sengstock, Klaus; Gaaloul, Naceur; Ertmer, Wolfgang; Rasel, Ernst Maria (Bristol : IOP Publishing Ltd., 2015-06-01)
    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 is ideally realized in microgravity ...
  • A high-flux BEC source for mobile atom interferometers (vol 17, 065001, 2015) 
    Rudolph, Jan; Herr, Waldemar; Grzeschik, Christoph; Sternke, Tammo; Grote, Alexander; Popp, Manuel; Becker, Dennis; Muentinga, Hauke; Ahlers, Holger; Peters, Achim; Laemmerzahl, Claus; Sengstock, Klaus; Gaaloul, Naceur; Ertmer, Wolfgang; Rasel, Ernst Maria (Bristol : IOP Publishing Ltd., 2015-07-09)
    Erratum to: A high-flux BEC source for mobile atom interferometers in: New Journal of Physics 17 (2015) 065001
  • Influence of the particle number on the spin dynamics of ultracold atoms 
    Heinze, Jannes; Deuretzbacher, Frank; Pfannkuche, Daniela (College Park, MD : American Physical Society, 2010)
    We study the dependency of the quantum spin dynamics on the particle number in a system of ultracold spin-1 atoms within the single-spatial-mode approximation. We find, for all strengths of the spin-dependent interaction, ...
  • Interferometric sensitivity and entanglement by scanning through quantum phase transitions in spinor Bose-Einstein condensates 
    Feldmann, P.; Gessner, M.; Gabbrielli, M.; Klempt, Carsten; Santos, Luis; Pezze, L.; Smerzi, A. (College Park : American Physical Society, 2018)
    Recent experiments demonstrated the generation of entanglement by quasiadiabatically driving through quantum phase transitions of a ferromagnetic spin-1 Bose-Einstein condensate in the presence of a tunable quadratic Zeeman ...
  • Long-range transverse Ising model built with dipolar condensates in two-well arrays 
    Li, Yongyao; Pang, Wei; Xu, Jun; Lee, Chaohong; Malomed, Boris A.; Santos, Luis (Bristol : Institute of Physics Publishing, 2017)
    Dipolar Bose-Einstein condensates in an array of double-well potentials realize an effective transverse Ising model with peculiar inter-layer interactions, that may result under proper conditions in an anomalous first-order ...
  • Matter-wave optics with Bose-Einstein condensates in microgravity 
    Rudolph, Jan (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2016)
    [no abstract]
  • Matter-wave optics with Bose-Einstein condensates in microgravity 
    Rudolph, Jan (Hannover : Gottfried Wilhelm Leibniz Universität Hannover, 2016)
    Quantum sensors based on the interference of cold atoms have advanced to the forefront of precision measurements in geodesy, metrology and tests of fundamental physics. The ultimate potential of these devices is realized ...
  • Multiresonant Spinor Dynamics in a Bose-Einstein Condensate 
    Klempt, Carsten; Topic, O.; Gebreyesus, G.; Scherer, M.; Henninger, T.; Hyllus, P.; Ertmer, Wolfgang; Santos, Luis; Arlt, Jan J. (College Park : American Physical Society, 2009)
    We analyze the spinor dynamics of a (87)Rb F=2 condensate initially prepared in the m(F)=0 Zeeman sublevel. We show that this dynamics, characterized by the creation of correlated atomic pairs in m(F)=+/- 1, presents an ...
  • Number-resolved Analysis of Many-body Quantum States 
    Hetzel, Mareike (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2023)
    Quantum sensors have emerged as a revolutionary technology that harnesses quantum phenomena to surpass the resolution of classical sensors. By leveraging the unique property of quantum particles to exist in superposition ...
  • Optimal control of the transport of Bose-Einstein condensates with atom chips 
    Amri, Sirine; Corgier, Robin; Sugny, Dominique; Rasel, Ernst M.; Gaaloul, Naceur; Charron, Eric (Berlin : Springer Nature, 2019)
    Using Optimal Control Theory (OCT), we design fast ramps for the controlled transport of Bose-Einstein condensates with atom chips' magnetic traps. These ramps are engineered in the context of precision atom interferometry ...