Direct observation of tunneling and nonlinear self-trapping in a single bosonic Josephson junction.

By M. Albiez, Rudolf Gati, J. Fölling, S. Hunsmann, M. Cristiani, Markus K. Oberthaler. Physical Review Letters, 2004

1,099 citations recorded by the source corpus.

We report on the first realization of a single bosonic Josephson junction, implemented by two weakly linked Bose-Einstein condensates in a double-well potential. In order to fully investigate the nonlinear tunneling dynamics we measure the density distribution in situ and deduce the evolution of the relative phase between the two condensates from interference fringes. Our results verify the predicted nonlinear generalization of tunneling oscillations in superconducting and superfluid Josephson junctions. Additionally, we confirm a novel nonlinear effect known as macroscopic quantum self-trapping, which leads to the inhibition of large amplitude tunneling oscillations.

Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/e43606fe712f1454121921b3d212d28adc2c0ea1

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Artificial Intelligence

In Atomic and Molecular Physics, and Optics

Citations in the corpus

Ultracold quantum gases in optical lattices (2005, background): “Very recently, in a textbook experiment, researchers have been able to confine a BEC to just two wells of a periodic potentia”
Spin squeezing, entanglement and quantum metrology with Bose–Einstein condensates (2012, background): “for the noise sensitivity can be obtained by the following consideration where the main experimental challenge, the relative movement of the dipole traps that generate the trapping potential [122, 48], becomes obvious.”
Ultracold quantum gases in triangular optical lattices (2009, background): “This new experimental environment opens the way to study many-body physics from so called mean-field dominated physics to strongly correlated regimes and allows for a vast amount of interesting experiments ranging from Josephson junctions [2], quantum registers [3] and ultracold chemistry [4] to the”
Quantum metrology with nonclassical states of atomic ensembles (2016, background): “, 2011) as well as in optical traps (Shin et al., 2004; Albiez et al., 2005; Hadzibabic et al., 2006).”
Theory of ultracold atomic Fermi gases (2007, background): “…the hydrodynamic nature of the collective oscillations (Jin et al., 1996; Mewes et al., 1996), Josephson-like effects (Cataliotti et al., 2001; Albiez et al., 2005) and the realization of quantized vortices (Matthews et al., 1999; Madison et al., 2000; Abo-Shaeer et al., 2001); the…”
Matter-wave interferometry in a double well on an atom chip (2005, background): “A generic configuration for studies of matter-wave dynamics is the double wel”
A bosonic Josephson junction (2007, methodology): “1 The difference between the previously [53] reported value of 412(20) Hz and the new value of 420(5) Hz for the barrier height results from an improved method for deducing the height of the standing light wave by using 3D numerical simulations instead of the non-polynomial Schrödinger equation for ”