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Magnetic confinement fusion researches are an approach to demonstrate the feasibility of nuclear fusion power for energy production. In these experiments, mega-watt range power Radio-Frequency waves, from tens of MHz to hundreds of GHz, are…

Plasma Physics · Physics 2017-10-11 Julien Hillairet , Marc Goniche , Nicolas Fil , Mohamed Belhaj , Jérôme Puech

Near-field radiative heat transfer (NFRHT) is strongly related with many applications such as near-field imaging, thermos-photovoltaics and thermal circuit devices. The active control of NFRHT is of great interest since it provides a degree…

Mesoscale and Nanoscale Physics · Physics 2019-07-17 Lixin Ge , Ke Gong , Yuping Cang , Yongsong Luo , Xi Shi , Ying Wu

The trapping of ultracold atoms using two-colour evanescent light waves formed by propagating modes of suspended optical rib waveguides is modelled in different configurations. Reducing the anisotropy of the two-colour evanescent optical…

Atomic Physics · Physics 2025-08-01 Yuri B. Ovchinnikov

We propose a method for reducing the sensitivity of atomic ground to Rydberg transitions to stray dc electric fields, using microwave-induced dressing of Rydberg states. Calculations are presented for the Cs $\state{90S}{1/2}$ and…

Atomic Physics · Physics 2018-01-31 Donald W. Booth , Joshua Isaacs , M. Saffman

Polar molecules confined in an optical lattice are a versatile platform to explore spin-motion dynamics based on strong, long-range dipolar interactions. The precise tunability of Ising and spin-exchange interactions with both microwave and…

In this article, we have theoretically studied the time averaged adiabatic potential (TAAP) scheme for realizing different atom trapping geometries. It is shown that by varying time orbiting potential (TOP) fields and radio frequency (rf)…

Atomic Physics · Physics 2021-11-17 Sourabh Sarkar , S. P. Ram , V. B. Tiwari , S. R. Mishra

By integrating tweezer arrays with a high-cooperativity ring cavity with chiral atom-cavity coupling, we demonstrate highly directional Bragg scattering from a programmable number of atoms. Through accurate control of the interatomic…

We investigate the effect of strong interaction in the dressed energy levels of the two level emitters. Strong dipole-dipole interactions give rise to new sidebands in the fluorescence spectrum due to specific couplings among the collective…

Quantum Physics · Physics 2021-01-11 Seyed Mostafa Moniri , Marjan Fani , Elnaz Darsheshdar

We propose a method to realize the Frenkel-Kontorova model using an array of Rydberg dressed atoms. Our platform can be used to study this model with a range of realistic interatomic potentials. In particular, we concentrate on two types of…

Quantum Gases · Physics 2020-10-14 Jorge Mellado Muñoz , Rahul Sawant , Anna Maffei , Xi Wang , Giovanni Barontini

We report on the magnetic merging of ultracold atomic gases of $^{85}$Rb and $^{87}$Rb by the controlled overlap of two initially spatially-separated magnetic traps. We present a detailed analysis of the combined magnetic field potential as…

Atomic Physics · Physics 2011-09-27 S Händel , T P Wiles , A L Marchant , S A Hopkins , C S Adams , S L Cornish

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…

Atomic Physics · Physics 2025-04-10 Lingbang Zhu , Jeshurun Luke , Roy Shaham , Yi-Xiang Liu , Kang-Kuen Ni

We report on the optical polarizability of microwave-shielded ultracold NaCs molecules in an optical dipole trap. While dressing a pair of rotational states with a microwave field, we observe a marked dependence of the optical…

Quantum Gases · Physics 2025-01-16 Siwei Zhang , Weijun Yuan , Niccolò Bigagli , Claire Warner , Ian Stevenson , Sebastian Will

We investigate the time evolution of a non-resonant dressed-atom qubit in an XZ original configuration. It is composed of two electromagnetic fields, one oscillating parallel and the other orthogonal to the quantisation magnetic static…

We show that an alkali atom with a tripod electronic structure can yield rich electromagnetically induced transparency phenomena even at room temperature. In particular we introduce double-double electromagnetically induced transparency…

Quantum Physics · Physics 2014-03-05 Hessa M. M. Alotaibi , Barry C. Sanders

In this work, we study the resonant tunneling (RT) of electrons and H atoms in double-barrier (DB) systems. Our numerical calculations directly verify the correspondence between the resonant tunneling energies and the energy levels of…

Mesoscale and Nanoscale Physics · Physics 2024-11-14 Wei Li , Yong Yang

We demonstrate bi-chromatic adiabatic magnetic shell traps as a novel tool for matterwave interferometry. Using two strong RF fields, we dress the $|1,-1\rangle $ and $ |2,1\rangle$ states of Rubidium Bose-Einstein Condensates thus creating…

Quantum Physics · Physics 2019-07-04 Hector Mas , Saurabh Pandey , Giorgos Vasilakis , Wolf von Klitzing

We show that ultracold chemical reactions can be manipulated and controlled by using Rydberg-dressed interactions. Scattering in the ultracold regime is sensitive to long-range interactions, especially when weakly bound (or quasi-bound)…

Atomic Physics · Physics 2015-06-19 Jia Wang , Jason N. Byrd , Ion Simbotin , R. Côté

Magnetoresistance of two-dimensional electron systems with several occupied subbands oscillates owing to periodic modulation of the probability of intersubband transitions by the quantizing magnetic field. In addition to previous…

Mesoscale and Nanoscale Physics · Physics 2009-12-08 S. Wiedmann , N. C. Mamani , G. M. Gusev , O. E. Raichev , A. K. Bakarov , J. C. Portal

We describe an experiment in which cold rubidium atoms, confined in an elongated magnetic trap, are excited by transverse oscillation of the trap centre. The temperature after excitation exhibits resonance as a function of the driving…

A double-helix optical trapping potential for cold atoms can be straightforwardly created inside the evanescent field of an optical nanofiber. It suffices to send three circularly polarized light fields through the nanofiber; two…

Atomic Physics · Physics 2012-09-27 D. Reitz , A. Rauschenbeutel