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New frontiers for quantum gases of polar molecules

Steven A. Moses, Jacob P. Covey, Matthew Miecnikowski +2 more

arXiv:1610.07711Nature PhysicsDec 19, 2016233 citations

Quantum sensing of ultralow temperature in biwire ultracold polar molecules

Abdelâali Boudjemâa, Karima Abbas, Asma Tahar Taiba +1 more

We present a systematic study of quantum sensing of ultralow temperature in biwire ultracold polar molecules of a quasi-one-dimensional (1D) trap by exploring the dynamics of two physically different qubit models. The two models consist of a trapped impurity atom that act as a temperature quantum sensor interacting with polar molecules reservoir, where dipole moments are aligned head-to-tail across the wires. Our model takes advantage of the adjustable interwire distance to accurately control the precision ultralow temperatures measurement. We show that the system undergoes a transition from Markovian to non-Markovian dynamics, which can be controlled by changing the interwire separation, the dipole-–dipole interaction (DDI), and the temperature. We characterize the thermometric performance using the quantum signal-to-noise ratio for both models and demonstrate that such a quantity exhibits a higher peak at ultralow temperature. We therefore emphasize that ultracold polar molecules are crucial for revolutionizing temperature sensing. Published by the American Physical Society 2024We present a systematic study of quantum sensing of ultralow temperature in biwire ultracold polar molecules of a quasi-one-dimensional (1D) trap by exploring the dynamics of two physically different qubit models. The two models consist of a trapped impurity atom that act as a temperature quantum sensor interacting with polar molecules reservoir, where dipole moments are aligned head-to-tail across the wires. Our model takes advantage of the adjustable interwire distance to accurately control the precision ultralow temperatures measurement. We show that the system undergoes a transition from Markovian to non-Markovian dynamics, which can be controlled by changing the interwire separation, the dipole-–dipole interaction (DDI), and the temperature. We characterize the thermometric performance using the quantum signal-to-noise ratio for both models and demonstrate that such a quantity exhibits a higher peak at ultralow temperature. We therefore emphasize that ultracold polar molecules are crucial for revolutionizing temperature sensing. Published by the American Physical Society 2024

Physical Review ASep 12, 20249 citations

Novel p-wave superfluids of fermionic polar molecules

Aleksey K. Fedorov, Sergey I. Matveenko, Vladimir I. Yudson +1 more

Recently suggested subwavelength lattices offer remarkable prospects for the observation of novel superfluids of fermionic polar molecules. It becomes realistic to obtain a topological p-wave superfluid of microwave-dressed polar molecules in 2D lattices at temperatures of the order of tens of nanokelvins, which is promising for topologically protected quantum information processing. Another foreseen novel phase is an interlayer p-wave superfluid of polar molecules in a bilayer geometry.

arXiv:1601.03026Scientific ReportsJun 9, 201628 citations

A dielectric superfluid of polar molecules

Seth T. Rittenhouse, Ryan Wilson, John L. Bohn

Bulletin of the American Physical SocietyJun 15, 20110 citations

Ultracold polar molecules as a quantum simulator

Steven A. Moses, Bo Yan, Bryce Gadway +5 more

Bulletin of the American Physical SocietyJun 4, 20140 citations

Resonance collisions of ultracold polar molecules in a microwave field

А. V. Avdeenkov

The collisions at ultracold temperatures between 1Σ state diatomic polar molecules in a microwave field with a circular polarization are theoretically analyzed. We demonstrate the possibility of trapping polar molecules in the standing-wave electromagnetic field and a successful evaporative cooling not only for samples of molecules in their absolute ground states but in some rotationally excited states in the appropriate regions of frequencies of a field. Here we only discuss fermionic polar molecules at ultralow temperatures(1μK), considering RbK as a prototype.The collisions at ultracold temperatures between 1Σ state diatomic polar molecules in a microwave field with a circular polarization are theoretically analyzed. We demonstrate the possibility of trapping polar molecules in the standing-wave electromagnetic field and a successful evaporative cooling not only for samples of molecules in their absolute ground states but in some rotationally excited states in the appropriate regions of frequencies of a field. Here we only discuss fermionic polar molecules at ultralow temperatures(1μK), considering RbK as a prototype.

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIESep 10, 20100 citations

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