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Hypersonic Bose-Einstein condensates in accelerator rings.

Saurabh Pandey1,2, Hector Mas1,3, Giannis Drougakis1,2

  • 1Institute of Electronic Structure and Laser, Foundation for Research and Technology - Hellas, Heraklion, Greece.

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Summary
This summary is machine-generated.

Researchers created controllable matter-wave guides for Bose-Einstein condensates (BECs), enabling compact, sensitive atom interferometers for applications like gravity mapping and inertial navigation.

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Area of Science:

  • Atomic, Molecular, and Optical Physics
  • Quantum Control
  • Condensed Matter Physics

Background:

  • High-precision measurements often rely on matter-wave interferometry with atomic clouds.
  • Current methods require large apparatus or microgravity environments for extended interrogation times.
  • Cancelling gravitational effects promises compact devices with enhanced sensitivity.

Purpose of the Study:

  • To demonstrate controllable matter-wave guides for transporting Bose-Einstein condensates (BECs) over macroscopic distances.
  • To enable compact devices for sensitive measurements by extending interrogation times.
  • To explore new quantum phenomena and applications using ultracold atoms.

Main Methods:

  • Transporting Bose-Einstein condensates (BECs) using a neutral-atom accelerator ring.
  • Achieving hypersonic velocities (16x sound speed) for BECs.
  • Utilizing magnetic matter-wave guides for 15 cm transport while maintaining coherence.

Main Results:

  • Demonstrated smooth and controllable matter-wave guides.
  • Maintained internal coherence of BECs during transport.
  • Achieved high angular momentum (>40,000ħ per atom) and hypersonic velocities.
  • Controlled potentials with picokelvin precision.

Conclusions:

  • Coherent matter-wave guides enable extended interaction times in compact devices.
  • Facilitates study of superfluidity, tunnelling, and transport regimes in ultracold atoms.
  • Paves the way for portable guided-atom interferometers for inertial navigation and gravity mapping.