Coherent matter wave emission from an atomtronic transistor

• URL: http://arxiv.org/abs/2510.03398v1
• Date: Fri, 03 Oct 2025 18:00:01 GMT
• Title: Coherent matter wave emission from an atomtronic transistor
• Authors: Sasanka Dowarah, Mengxin Du, Alan Zanders, Shengwang Du, Michael Kolodrubetz, Chuanwei Zhang,
• Abstract summary: atomtronic triple-well transistor is theoretically predicted to exhibit current gain and act as a coherent matter-wave emitter.<n>We investigate the dynamics of an atomtronic transistor composed of a triple-well potential -- source, gate, and drain.
• Score: 0.4397520291340695
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The atomtronic matter-wave triple-well transistor is theoretically predicted to exhibit current gain and act as a coherent matter-wave emitter. In this work, we investigate the dynamics of an atomtronic transistor composed of a triple-well potential -- source, gate, and drain -- modeled by the time-dependent Gross-Pitaevskii equation. We systematically explore the dependence of the drain population and the current on the source bias potential and the strength of the interatomic interaction. Our simulations reveal signatures of resonant tunneling when the source chemical potential aligns with discrete energy levels in the gate well, leading to coherent matter-wave emission in the drain. Contrary to previous many-body studies that predicted interaction-induced current gain via coupling to gate well modes, our results suggest that coherence in the drain is primarily governed by single-particle resonances, with no evident broadening from nonlinear coupling.

Related papers

• Symmetry-protected topology and deconfined solitons in a multi-link $\mathbb{Z}_2$ gauge theory [45.88028371034407]
  We study a $mathbbZ$ lattice gauge theory defined on a multi-graph with links that can be visualized as great circles of a spherical shell.<n>We show that this leads to state-dependent tunneling amplitudes underlying a phenomenon analogous to the Peierls instability.<n>By performining a detailed analysis based on matrix product states, we prove that charge deconfinement emerges as a consequence of charge-fractionalization.
  arXiv  Detail & Related papers  (2026-03-02T22:59:25Z)
• Interference Between Electromagnetic and Mechanical Waves [44.99833362998488]
  We study the interference of waves with different physical natures, specifically the electromagnetic and mechanical.<n>We propose new hybrid quantum devices, such as transistors or filters of wave packets, where photonic pulses control the passage of phononic waves.
  arXiv  Detail & Related papers  (2025-08-08T20:15:59Z)
• Tripartite Entanglement in Multimode Cavity Quantum Electrodynamics [37.69303106863453]
  We numerically investigate the generation and dynamics of tripartite entanglement among qubits in multimode cavity quantum electrodynamics.<n>Our results hold promise for the development of entanglement-based quantum networking protocols and quantum memories.
  arXiv  Detail & Related papers  (2025-07-16T03:53:14Z)
• Electron-Electron Interactions in Device Simulation via Non-equilibrium Green's Functions and the GW Approximation [71.63026504030766]
  electron-electron (e-e) interactions must be explicitly incorporated in quantum transport simulation.<n>This study is the first one reporting large-scale atomistic quantum transport simulations of nano-devices under non-equilibrium conditions.
  arXiv  Detail & Related papers  (2024-12-17T15:05:33Z)
• Steady-state dynamics and non-local correlations in thermoelectric Cooper pair splitters [43.62395775086322]
  Recent experiments on Cooper pair splitters using superconductor-quantum dot hybrids have embarked on creating entanglement in the solid-state.<n>We present a comprehensive analysis of the fundamental components of the observed transport signal.<n>Our work provides detailed insights into the gate voltage control of the quantum correlations in superconducting-hybrid Cooper pair splitters.
  arXiv  Detail & Related papers  (2024-06-10T06:46:10Z)
• Qubit Analog with Polariton Superfluid in an Annular Trap [0.0]
  We report on the experimental realization and characterization of a qubit analog with semiconductor exciton-polaritons. In our system, a condensate of exciton-polaritonsfluid is confined by a spatially-patterned pump laser in an annular trap. We observe coherent oscillations between a pair of counter-circulating superfluid vortex states of the polaritons coupled by elastic scattering off the laser-imprinted potential.
  arXiv  Detail & Related papers  (2023-08-10T13:13:37Z)
• Unconventional Quantum Electrodynamics with Hofstadter-Ladder Waveguide [5.693517450178467]
  We propose a novel quantum electrodynamics (QED) platform where quantum emitters interact with a Hofstadter-ladder waveguide. By assuming emitter's frequency to be resonant with the lower band, we find that the spontaneous emission is chiral. Due to quantum interference, we find that both the emitter-waveguide interaction and the amplitudes of bound states are periodically modulated by giant emitter's size.
  arXiv  Detail & Related papers  (2022-03-21T07:07:26Z)
• Quantum dynamics simulation of intramolecular singlet fission in covalently linked tetracene dimer [0.0]
  We study singlet fission in tetracene para-dimers, covalently linked by a phenyl group. In contrast to most previous works, we account for the full quantum dynamics of the combined excitonic and vibrational system.
  arXiv  Detail & Related papers  (2021-07-29T13:15:24Z)
• Matterwaves, Matterons, and the Atomtronic Transistor Oscillator [0.0]
  A Bose-condensed reservoir of atoms in a large source well provides a chemical potential that drives circuit dynamics. Key circuit parameters such as the transistor transconductance and output current are derived by transitioning to a classical equivalent circuit model.
  arXiv  Detail & Related papers  (2021-06-19T18:36:29Z)
• Demonstration of electron-nuclear decoupling at a spin clock transition [54.088309058031705]
  Clock transitions protect molecular spin qubits from magnetic noise. linear coupling to nuclear degrees of freedom causes a modulation and decay of electronic coherence. An absence of quantum information leakage to the nuclear bath provides opportunities to characterize other decoherence sources.
  arXiv  Detail & Related papers  (2021-06-09T16:23:47Z)
• Beyond the Rabi model: light interactions with polar atomic systems in a cavity [0.0]
  The Rabi Hamiltonian describes the interaction between a two-level atomic system and a single cavity mode of the electromagnetic field. In this work we consider the most general Rabi model, incorporating the effects of permanent atomic electric dipole moments.
  arXiv  Detail & Related papers  (2021-03-20T19:54:17Z)
• Controlled coherent dynamics of [VO(TPP)], a prototype molecular nuclear qudit with an electronic ancilla [50.002949299918136]
  We show that [VO(TPP)] (vanadyl tetraphenylporphyrinate) is a promising system suitable to implement quantum computation algorithms. It embeds an electronic spin 1/2 coupled through hyperfine interaction to a nuclear spin 7/2, both characterized by remarkable coherence.
  arXiv  Detail & Related papers  (2021-03-15T21:38:41Z)
• Probing eigenstate thermalization in quantum simulators via fluctuation-dissipation relations [77.34726150561087]
  The eigenstate thermalization hypothesis (ETH) offers a universal mechanism for the approach to equilibrium of closed quantum many-body systems. Here, we propose a theory-independent route to probe the full ETH in quantum simulators by observing the emergence of fluctuation-dissipation relations. Our work presents a theory-independent way to characterize thermalization in quantum simulators and paves the way to quantum simulate condensed matter pump-probe experiments.
  arXiv  Detail & Related papers  (2020-07-20T18:00:02Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.