2016
DOI: 10.1103/physrevlett.116.235302
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Bistability in a Driven-Dissipative Superfluid

Abstract: We experimentally study a driven-dissipative Josephson junction array, realized with a weakly interacting Bose Einstein condensate residing in a one-dimensional optical lattice. Engineered losses on one site act as a local dissipative process, while tunneling from the neighboring sites constitutes the driving force. We characterize the emerging steady-states of this atomtronic device. With increasing dissipation strength γ the system crosses from a superfluid state, characterized by a coherent Josephson curren… Show more

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Cited by 188 publications
(256 citation statements)
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References 38 publications
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“…In the following, we restrict to local single-body dissipation as motivated in the introduction, i.e.,L j =â j , and γ j is the dissipation rate at site j. This choice of the Lindblad operator, as shown in [7], leads to equations of motion for the SPDM equivalent to the heuristic non-Hermitian discrete nonlinear Schrödinger equation introduced in [23] and successfully applied to the description of localized single-body dissipation processes in Bose-Hubbard chains in good agreement with experimental realizations [3,5]. Further sets of Lindblad operators modelling other processes in Bose-Hubbard chains can be found in the review [24].…”
Section: Dissipative Finite Bose-hubbard Chainmentioning
confidence: 50%
See 1 more Smart Citation
“…In the following, we restrict to local single-body dissipation as motivated in the introduction, i.e.,L j =â j , and γ j is the dissipation rate at site j. This choice of the Lindblad operator, as shown in [7], leads to equations of motion for the SPDM equivalent to the heuristic non-Hermitian discrete nonlinear Schrödinger equation introduced in [23] and successfully applied to the description of localized single-body dissipation processes in Bose-Hubbard chains in good agreement with experimental realizations [3,5]. Further sets of Lindblad operators modelling other processes in Bose-Hubbard chains can be found in the review [24].…”
Section: Dissipative Finite Bose-hubbard Chainmentioning
confidence: 50%
“…For the experimental situation, as realised, e.g., in Herwig Otts's group at Kaiserslautern, atoms are ionised in a controlled way by an electronic beam and the produced ions and electrons are quickly extracted [1][2][3][4][5]. Consequently, there is scarcely any backaction onto the remaining atoms in the Bose condensate, provided that the filling factors (particle numbers per site) along the lattice are large.…”
Section: Introductionmentioning
confidence: 99%
“…(b) It is suppressed orthogonally to the spin chain, as the phase terms e q R i j -  · in V col are close to 1. Indeed, V col then produces an identical rotation of all spins in the chain, which does not modify the collective spin and therefore is unable to drive any dissipative dynamics 6 .…”
Section: Optimizing the Bath Lattice Potentialmentioning
confidence: 99%
“…This is an exciting new paradigm, and also opens the fascinating perspective of 'environment engineering' to protect or produce entangled states, for quantum information processing and for quantum simulation. Subjecting the various many-body systems explored with cold atoms to well-controlled dissipative processes is a promising prospect to explore the diversity of these situations [5,6]. Among the many-body models implemented on ultra-cold atoms and molecules, lattice spin models have attracted a large attention [7][8][9][10][11][12][13][14][15][16][17][18].…”
Section: Introductionmentioning
confidence: 99%
“…Those new techniques also provide opportunities for testing and verifying theories of transport properties in solid state devices and cold atom systems56789101112. Recently, the concept of atomtronics13141516 has drawn intense attention due to intriguing experimental and theoretical studies, including quantum point contact1718, atomic SQUID1920212223, transistor24, capacitor25, and open quantum systems26272829. There is a bright future for atomtronics, and here we will address a challenging issue on driving atoms in atomtronic circuits via local manipulations.…”
mentioning
confidence: 99%