Principles and design of a Zeeman-Sisyphus decelerator for molecular beams

Abstract

We explore a technique for decelerating molecules using a static magnetic field and optical pumping. Molecules travel through a spatially varying magnetic field and are repeatedly pumped into a weak-field seeking state as they move towards each strong field region, and into a strong-field seeking state as they move towards weak field. The method is time-independent and so is suitable for decelerating both pulsed and continuous molecular beams. By using guiding magnets at each weak field region, the beam can be simultaneously guided and decelerated. By tapering the magnetic field strength in the strong field regions, and exploiting the Doppler shift, the velocity distribution can be compressed during deceleration. We develop the principles of this deceleration technique, provide a realistic design, use numerical simulations to evaluate its performance for a beam of CaF, and compare this performance to other deceleration methods.

arXiv comment23 pages

References in corpus (32)

• Quantum computation with trapped polar molecules
• Cold and Ultracold Molecules: Science, Technology, and Applications
• Order of Magnitude Smaller Limit on the Electric Dipole Moment of the Electron
• Laser cooling of a diatomic molecule
• Magneto-optical trapping of a diatomic molecule
• The Buffer Gas Beam: An Intense, Cold, and Slow Source for Atoms and Molecules
• Magneto-optical trapping of diatomic molecules
• Cold Molecule Spectroscopy for Constraining the Evolution of the Fine Structure Constant
• Laser cooling and slowing of CaF molecules
• Using Molecules to Measure Nuclear Spin-Dependent Parity Violation
• Lasercooled RaF as a promising candidate to measure molecular parity violation
• Sisyphus Cooling of Electrically Trapped Polyatomic Molecules
• High-flux beam source for cold, slow atoms or molecules
• Evaporative cooling of the dipolar radical OH
• Sub-millikelvin dipolar molecules in a radio-frequency magneto-optical trap
• Laser radiation pressure slowing of a molecular beam
• Optoelectrical cooling of polar molecules to sub-millikelvin temperatures
• Deceleration of neutral molecules in macroscopic traveling traps
• A search for varying fundamental constants using Hz-level frequency measurements of cold CH molecules
• Laser slowing of CaF molecules to near the capture velocity of a molecular MOT
• Continuous Centrifuge Decelerator for Polar Molecules
• Improved magneto-optical trapping of a diatomic molecule
• Magnetic Trapping of Molecules via Optical Loading and Magnetic Slowing
• Modeling magneto-optical trapping of CaF molecules
• Search for the electron electric dipole moment using $\Omega$-doublet levels in PbO${}^{\ast }$
• Static trapping of polar molecules in a traveling wave decelerator
• Modeling sympathetic cooling of molecules by ultracold atoms
• Opto-Electrical Cooling of Polar Molecules
• Radiation Pressure Force from Optical Cycling on a Polyatomic Molecule
• Prospects for sympathetic cooling of molecules in electrostatic, ac and microwave traps
• Method for traveling-wave deceleration of buffer-gas beams of CH
• Deceleration of continuous molecular beams

Cited by in corpus (21)

• Molecules cooled below the Doppler limit
• Ultracold molecules for measuring the electron's electric dipole moment
• Laser-Cooled Polyatomic Molecules for Improved Electron Electric Dipole Moment Searches
• Quantum state manipulation and cooling of ultracold molecules
• Sub-Doppler Cooling and Compressed Trapping of YO Molecules at $\mu$K Temperatures
• 1D Magneto-Optical Trap of Polyatomic Molecules
• Laser cooling of molecules
• Laser cooled molecules
• An intense, cold, velocity-controlled molecular beam by frequency-chirped laser slowing
• Characteristics of a magneto-optical trap of molecules
• Spectroscopic characterization of aluminum monofluoride with relevance to laser cooling and trapping
• Enhanced Yield from a Cryogenic Buffer Gas Beam Source via Excited State Chemistry
• Quantum control of molecules for fundamental physics
• Bright, continuous beams of cold free radicals
• Inner-shell excitation in the YbF molecule and its impact on laser cooling
• Sisyphus Optical Lattice Decelerator
• Multivalent optical cycling centers in polyatomic molecules
• Maximizing the capture velocity of molecular magneto-optical traps with Bayesian optimization
• Slow molecular beams from a cryogenic buffer gas source
• Zeeman-Sisyphus Deceleration for Heavy Molecules with Perturbed Excited-State Structure
• Cold CH radicals for laser cooling and trapping