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We experimentally demonstrate a variation on a Sisyphus cooling technique that was proposed for cooling antihydrogen. In our implementation, atoms are selectively excited to an electronic state whose energy is spatially modulated by an…

Efficient cooling of trapped charged particles is essential to many fundamental physics experiments, to high-precision metrology, and to quantum technology. Until now, sympathetic cooling has required close-range Coulomb interactions, but…

In a recent letter [Phys. Rev. Lett. 104, 167201 (2010)] we proposed a new confining method for ultracold atoms on optical lattices, based on off-diagonal confinement (ODC). This method was shown to have distinct advantages over the…

Quantum Gases · Physics 2011-01-28 V. G. Rousseau , K. Hettiarachchilage , M. Jarrell , J. Moreno , D. E. Sheehy

We propose an alternative method to laser cooling. Our approach utilizes the extreme brightness of a supersonic atomic beam, and the adiabatic atomic coilgun to slow atoms in the beam or to bring them to rest. We show how internal-state…

A cooling scheme for trapped atoms is proposed, which combines cavity-enhanced scattering and electromagnetically induced transparency. The cooling dynamics exploits a three-photon resonance, which combines laser and cavity excitations. It…

Quantum Physics · Physics 2012-02-03 Marc Bienert , Giovanna Morigi

Evanescent coupling between a silica optical microbottle resonator and a GaAs electromechanical resonator is demonstrated. This coupling provides high optical sensitivity and efficient piezoelectric controllability of mechanical motion.…

Mesoscale and Nanoscale Physics · Physics 2018-05-17 Motoki Asano , Ryuichi Ohta , Takashi Yamamoto , Hajime Okamoto , Hiroshi Yamaguchi

E.A. Schoene et al., in arXiv:1012.3207 [Phys. Rev.A, 82, 023419 (2010)] give incorrect interpretation of their experimental results. Really we observe a temporary capture and additional cooling of atoms in the presence of the orthogonal…

General Physics · Physics 2011-01-13 V. A. Kuz'menko

We propose a method to cool a thermal photonic state in a cavity by passing electrons through it. Electrons are coherently split into two paths, with one path traversing the cavity, becoming entangled with its photonic state. A sequence of…

Quantum Physics · Physics 2026-01-30 D. E. Maison , L. Stettiner , S. Even-Haim , A. Gorlach , I. Kaminer

We theoretically investigate the steady-state bipartite entanglements, mechanical ground-state cooling, and mechanical quadrature squeezing in a hybrid electro-optomechanical system where a moving membrane is linearly coupled to the…

Quantum Physics · Physics 2025-02-13 N. Ghorbani , Ali Motazedifard , M. H. Naderi

We propose an optomechanical dissipation engineering scheme by introducing an ancillary mechanical mode with a large decay rate to control the density of states of the optical mode. The effective linewidth of the optical mode can be reduced…

Quantum Physics · Physics 2020-07-01 Yan-Lei Zhang , Chuan-Sheng Yang , Zhen Shen , Chun-Hua Dong , Guang-Can Guo , Chang-Ling Zou , Xu-Bo Zou

Physics of enhanced optical cooling of particle beams in storage rings, nonlinear features of cooling and requirements to ring lattices, optical and laser systems are discussed

Accelerator Physics · Physics 2007-05-23 E. G. Bessonov , A. A. Mikhailichenko , A. V. Poseryaev

We demonstrate the possiblity to cool nanoelectronic systems in nonequilibrium situations by increasing the temperature of the environment. Such cooling by heating is possible for a variety of experimental conditions where the relevant…

Mesoscale and Nanoscale Physics · Physics 2018-08-15 R. Härtle , C. Schinabeck , M. Kulkarni , D. Gelbwaser-Klimovsky , M. Thoss , U. Peskin

The trapped-ion quantum charge-coupled device (QCCD) architecture is a leading candidate for advanced quantum information processing. In current QCCD implementations, imperfect ion transport and anomalous heating can excite ion motion…

Quantum opto- and electromechanical systems interface mechanical motion with the electromagnetic modes of optical resonators and microwave circuits. The capabilities and promise of these hybrid devices have been showcased through a variety…

Quantum Physics · Physics 2025-08-20 Yiwen Chu , Simon Gröblacher

A laser cooling method for trapped atoms is described which achieves ground state cooling by exploiting quantum interference in a driven Lambda-shaped arrangement of atomic levels. The scheme is technically simpler than existing methods of…

Quantum Physics · Physics 2010-03-26 Giovanna Morigi , Juergen Eschner , Christoph H. Keitel

We investigate a hybrid quantum system consisting of a cavity optomechanical device optically coupled to an ultracold quantum gas. We show that the dispersive properties of the ultracold gas can be used to dramatically modify the…

Quantum Physics · Physics 2015-06-22 F. Bariani , S. Singh , L. F. Buchmann , M. Vengalattore , P. Meystre

We discuss a hybrid quantum system where a dielectric membrane situated inside an optical cavity is coupled to a distant atomic ensemble trapped in an optical lattice. The coupling is mediated by the exchange of sideband photons of the…

Quantum Physics · Physics 2013-02-18 B. Vogell , K. Stannigel , P. Zoller , K. Hammerer , M. T. Rakher , M. Korppi , A. Jöckel , P. Treutlein

We explore how to cool atomic collective excitations in an optically-driven three-level atomic ensemble, which may be described by a model of coupled two harmonic oscillators (HOs) with a time-dependent coupling. Moreover, the coupled…

Quantum Physics · Physics 2009-06-05 Yong Li , Z. D. Wang , C. P. Sun

Refrigeration of a solid-state system with light has potential applications for cooling small-scale electronics and photonics. We show theoretically that two coupled semiconductor quantum wells are efficient cooling media for optical…

Mesoscale and Nanoscale Physics · Physics 2015-10-28 R. S. Daveau , P. Tighineanu , P. Lodahl , S. Stobbe

The tapped ions can be cooled close to their motional ground state, which is imperative in implementing quantum computation and quantum simulation. Here we demonstrate the capability of light-mediated chiral couplings between ions, which…

Quantum Physics · Physics 2023-04-20 Chi-Chih Chen , Yi-Cheng Wang , Chun-Che Wang , H. H. Jen