Sisyphus cooling of electrically trapped polyatomic molecules

  title={Sisyphus cooling of electrically trapped polyatomic molecules},
  author={Martin Zeppenfeld and Barbara G. U. Englert and Rosa Gl{\"o}ckner and Alexander Prehn and Manuel Mielenz and Christian Sommer and Laurens D. van Buuren and Michael Motsch and Gerhard Rempe},
Polar molecules have a rich internal structure and long-range dipole–dipole interactions, making them useful for quantum-controlled applications and fundamental investigations. Their potential fully unfolds at ultracold temperatures, where various effects are predicted in many-body physics, quantum information science, ultracold chemistry and physics beyond the standard model. Whereas a wide range of methods to produce cold molecular ensembles have been developed, the cooling of polyatomic… 
Low-temperature physics: A chilling effect for molecules
An optoelectrical cooling technique that can reduce the temperature of about a million methyl fluoride (CH3F) molecules by a factor of more than ten and removes kinetic energy by means of a 'Sisyphus effect' that causes the molecules to continually 'climb' a hill of potential energy.
Magneto-optical trapping of a diatomic molecule
Three-dimensional magneto-optical trapping of a diatomic molecule, strontium monofluoride (SrF), at a temperature of approximately 2.5 millikelvin is demonstrated, the lowest yet achieved by direct cooling of a molecule.
Laser Cooling and Slowing of a Diatomic Molecule
Abstract : Laser cooling and trapping are central to modern atomic physics. It has been roughly three decades since laser cooling techniques produced ultracold atoms, leading to rapid advances in a
Laser-coolable polyatomic molecules with heavy nuclei
Recently a number of diatomic and polyatomics molecules has been identified as a prospective systems for Doppler/Sisyphus cooling. Doppler/Sisyphus cooling allows to decrease the kinetic energy of
Laser Cooling and Inelastic Collisions of the Polyatomic Radical SrOH
Polyatomic molecules, while ubiquitous in nature, were generally perceived as too complicated and “unruly” for the majority of quantum physics experiments. However, recent theoretical analyses have
A quantum gas of polar molecules in an optical lattice
The production of molecules from dual species atomic quantum gases has enabled experiments that employ molecules at nanoKelvin temperatures. As a result, every degree of freedom of these molecules is
New physics with cold molecules : precise microwave spectroscopy of CH and the development of a microwave trap
Cold polar molecules provide unique opportunities to test fundamental physics and chemistry. Their permanent electric dipole moments and rich internal structure arising from their vibrational and
Microscopic Derivation of Multichannel Hubbard Models for Ultracold Nonreactive Molecules in an Optical Lattice
Recent experimental advances in the cooling and manipulation of bialkali dimer molecules have enabled the production of gases of ultracold molecules that are not chemically reactive. It has been
Long-term trapping of Stark-decelerated molecules
Trapped cold molecules represent attractive systems for precision-spectroscopic studies and for investigations of cold collisions and chemical reactions. However, achieving their confinement for
Rotational Cooling of Trapped Polyatomic Molecules.
Controlling the internal degrees of freedom is a key challenge for applications of cold and ultracold molecules. Here, we demonstrate rotational-state cooling of trapped methyl fluoride molecules


Laser cooling of a diatomic molecule
This work experimentally demonstrates laser cooling of the polar molecule strontium monofluoride (SrF) using an optical cycling scheme requiring only three lasers, and bridges the gap between ultracold (submillikelvin) temperatures and the ∼1-K temperatures attainable with directly cooled molecules.
A High Phase-Space-Density Gas of Polar Molecules
An ultracold dense gas of potassium-rubidium (40K87Rb) polar molecules is created using a single step of STIRAP with two-frequency laser irradiation to coherently transfer extremely weakly bound KRb molecules to the rovibrational ground state of either the triplet or the singlet electronic ground molecular potential.
Optoelectrical cooling of polar molecules
We present progress towards the experimental realization of optoelectrical cooling [1] which is widely applicable for producing samples of ultracold (<1 mK) polar molecules. This scheme exploits the
Cold controlled chemistry.
  • R. Krems
  • Physics
    Physical chemistry chemical physics : PCCP
  • 2008
It is demonstrated that collisions of molecules at temperatures below 1 K can be manipulated by external electromagnetic fields and to discuss possible applications of cold controlled chemistry.
Storage and adiabatic cooling of polar molecules in a microstructured trap.
The trap combines all ingredients for opto-electrical cooling, which, together with the extraordinarily long storage times, brings field-controlled quantum-mechanical collision and reaction experiments within reach.
Magnetic trapping of calcium monohydride molecules at millikelvin temperatures
Recent advances in the magnetic trapping and evaporative cooling of atoms to nanokelvin temperatures have opened important areas of research, such as Bose–Einstein condensation and ultracold atomic
Microwave traps for cold polar molecules
Abstract.We discuss the possibility of trapping polar molecules in the standing-wave electromagnetic field of a microwave resonant cavity. Such a trap has several novel features that make it very
A coherent all-electrical interface between polar molecules and mesoscopic superconducting resonators
Building a scalable quantum processor requires coherent control and preservation of quantum coherence in a large-scale quantum system. Mesoscopic solid-state systems such as Josephson junctions and
A toolbox for lattice-spin models with polar molecules
There is growing interest in states of matter with topological order. These are characterized by highly stable ground states robust to perturbations that preserve the topology, and which support
Quantum computation with trapped polar molecules.
This design can plausibly lead to a quantum computer with greater, approximately > or = 10(4) qubits, which can perform approximately 10(5) CNOT gates in the anticipated decoherence time of approximately 5 s.