Designing Atomtronic Circuits via Superfluid Dynamics
arXiv:2411.13642 · doi:10.1103/shm9-kl7r
Abstract
We propose to design atomtronic circuits with Bose-Einstein condensates (BECs) in circuit-like traps that are controlled via mobile barriers. Using classical-field simulations, we demonstrate a universal set of logical gates and show how to assemble them into circuits. We first demonstrate an AND gate based on a T-shaped BEC, utilizing a combination of mobile and static barriers. The mobile barriers provide the logical input of the gate, while the static barrier functions as a Josephson junction that generates the AND output of the gate via a density imbalance across the barrier. Next we show how to combine three AND gates into a circuit, with a design composed of two T-shapes and an H-shape. Furthermore, we demonstrate how to use Josephson oscillations to create a NOT gate and combine it with an AND gate, thereby showcasing a universal set of gates and their assembly into circuits.
9 pages, 8 figures
References in corpus (33)
- Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
- Berezinskii-Kosterlitz-Thouless Crossover in a Trapped Atomic Gas
- Phase space representation of quantum dynamics
- Superflow in a toroidal Bose-Einstein condensate: an atom circuit with a tunable weak link
- Dynamics and statistical mechanics of ultra-cold Bose gases using c-field techniques
- Hysteresis in a quantized, superfluid atomtronic circuit
- Driving phase slips in a superfluid atom circuit with a rotating weak link
- Extension of Bogoliubov theory to quasi-condensates
- A Mixture of Bose and Fermi Superfluids
- Experimental realization of Josephson junctions for an Atom SQUID
- Atomtronics: ultracold atom analogs of electronic devices
- Roadmap on Atomtronics: State of the art and perspective
- Observation of the Berezinskii-Kosterlitz-Thouless Phase Transition in an Ultracold Fermi Gas
- Atomtronic circuits: from many-body physics to quantum technologies
- Transistor-Like Behavior of a Bose-Einstein Condensate in a Triple Well Potential
- The critical velocity in the BEC-BCS crossover
- Connecting dissipation and phase slips in a Josephson junction between fermionic superfluids
- Strongly correlated superfluid order parameters from dc Josephson supercurrents
- An ideal Josephson junction in an ultracold two-dimensional Fermi gas
- Anisotropic Superfluid Behavior of a Dipolar Bose-Einstein Condensate
- Open quantum systems approach to atomtronics
- Tunneling transport of unitary fermions across the superfluid transition
- Critical transport and vortex dynamics in a thin atomic Josephson junction
- Probing superfluidity of Bose-Einstein condensates via laser stirring
- Critical Vortex Shedding in a Strongly Interacting Fermionic Superfluid
- Observation of the BKT Transition in a 2D Bose Gas via Matter-Wave Interferometry
- Josephson junction dynamics in a two-dimensional ultracold Bose gas
- Perspective on new implementations of atomtronic circuits
- Shapiro steps in driven atomic Josephson junctions
- Collective modes and superfluidity of a two-dimensional ultracold Bose gas
- Implementation of an atomtronic SQUID in a strongly confined toroidal condensate
- Rydberg atomtronic devices
- Detecting Phase Coherence of 2D Bose Gases via Noise Correlations