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We show that congruent electric, magnetic and non-resonant optical fields acting concurrently on a polar paramagnetic (and polarisable) molecule offer possibilities to both amplify and control the directionality of the ensuing molecular…

化学物理 · 物理学 2016-01-12 Ketan Sharma , Bretislav Friedrich

We predict that pairs of polar molecules can be weakly bound together in an ultracold environment, provided that a dc electric field is present. The field that links the molecules together also strongly influences the basic properties of…

原子物理 · 物理学 2009-11-07 A. V. Avdeenkov , J. L. Bohn

Due to their intrinsic electric dipole moments and rich internal structure, ultracold polar molecules are promising candidate qubits for quantum computing and for a wide range of quantum simulations. Their long-lived molecular rotational…

Rotational excitation of polar molecules trapped in an optical lattice gives rise to rotational excitons. Here we show that non-linear interactions of such excitons can be controlled by an electric field. The exciton--exciton interactions…

介观与纳米尺度物理 · 物理学 2012-06-20 Ping Xiang , Marina Litinskaya , Roman V. Krems

We probe resonant dipolar interactions between ultracold $^{40}$K$^{87}$Rb molecules and Rydberg $^{87}$Rb atoms in an optically trapped ensemble. Through state-selective ionization detection of the KRb molecules, we observe resonant energy…

原子物理 · 物理学 2025-04-10 Lingbang Zhu , Jeshurun Luke , Roy Shaham , Yi-Xiang Liu , Kang-Kuen Ni

We explore the external electric field control of a species of ultralong-range molecules that emerge from the interaction of a ground state polar molecule with a Rydberg atom. The external field mixes the Rydberg electronic states and…

原子物理 · 物理学 2012-06-01 M. Mayle , S. T. Rittenhouse , P. Schmelcher , H. R. Sadeghpour

Doubly polar molecules, possessing an electric dipole moment and a magnetic dipole moment, can strongly couple to both an external electric field and a magnetic field, providing unique opportunities to exert full control of the system…

原子物理 · 物理学 2019-11-06 Hui Li , Goulven Quéméner , Jean-François Wyart , Olivier Dulieu , Maxence Lepers

In proposals for quantum computers using arrays of trapped ultracold polar molecules as qubits, a strong external field with appreciable gradient is imposed in order to prevent quenching of the dipole moments by rotation and to distinguish…

量子物理 · 物理学 2015-05-27 Qi Wei , Sabre Kais , Bretislav Friedrich , Dudley Herschbach

We propose an alternative scenario for the generation of entanglement between rotational quantum states of two polar molecules. This entanglement arises from dipole-dipole interaction, and is controlled by a sequence of laser pulses…

量子物理 · 物理学 2016-08-16 Eric Charron , Pérola Milman , Arne Keller , Osman Atabek

We investigate the impact of an electric field on the structure of ultralong-range polar diatomic Rydberg molecules. Both the s-wave and p-wave interactions of the Rydberg electron and the neutral ground state atom are taken into account.…

原子物理 · 物理学 2015-06-15 Markus Kurz , Peter Schmelcher

We make a general derivation for the magnetic dipole-dipole interaction based on the mediation of the quantized electro-magnetic field. Due to the interaction with the dipoles, the dynamics of the field is added by a dipole field, which…

量子物理 · 物理学 2020-08-07 Fang-qi Hu , Qing Zhao , Sheng-Wen Li

We investigate entanglement in a linear chain of $N$ polar molecules coupled by dipole interaction. In our model, nearest neighbour interaction predominate, and we compute entanglement with the help of a two-party correlation entanglement…

量子物理 · 物理学 2008-10-01 Pérola Milman , Arne Keller

We demonstrate that a non-vanishing interaction force exists between pairs of induced dipoles in random, statistically stationary electromagnetic field. This new type of optical binding force leads to long-range interaction between dipolar…

光学 · 物理学 2015-06-15 Sergey Sukhov , Kyle M. Douglass , Aristide Dogariu

The interaction between the electric dipole moment of a trapped molecular ion and the configuration of the confined Coulomb crystal couples the orientation of the molecule to its motion. We consider the practical feasibility of harnessing…

原子物理 · 物理学 2020-09-23 Wesley C. Campbell , Eric R. Hudson

Entanglement generated from polar molecules of two-dimensional rotation is investigated in a static electric field. The electric field modulates the rotational properties of molecules, leading to distinctive entanglement. The concurrence is…

量子物理 · 物理学 2017-11-22 Ying-Yen Liao

The long-range electrostatic interactions between molecules depend strongly on their relative orientation, which manifests as a rotational state dependence. Interactions between molecules in the same rotational quantum state are well-known…

原子物理 · 物理学 2024-05-16 Etienne F. Walraven , Tijs Karman

Dipole-dipole interaction is a long-range interaction, hence we could expect that the self-consistent field approximation might be applied. In most cases it is correct, but dipolar BECs reveal a surprise. Structure of the self-consistent…

量子气体 · 物理学 2014-11-03 Pavel A. Andreev

We present a theoretical study of dielectrophoretic (DEP) crossover spectrum of two polarizable particles under the action of a nonuniform AC electric field. For two approaching particles, the mutual polarization interaction yields a change…

化学物理 · 物理学 2007-05-23 J. P. Huang , Mikko Karttunen , K. W. Yu , L. Dong

We present first steps toward understanding the ultracold scattering properties of polar molecules in strong electric field-seeking states. We have found that the elastic cross section displays a quasi-regular set of potential resonances as…

原子物理 · 物理学 2009-11-11 Christopher Ticknor , John L. Bohn

Fully internal and motional state controlled and individually manipulable polar molecules are desirable for many quantum science applications leveraging the rich state space and intrinsic interactions of molecules. While prior efforts at…