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We review recent progress in the field of optomechanics, where one studies the effects of radiation on mechanical motion. The paradigmatic example is an optical cavity with a movable mirror, where the radiation pressure can induce cooling,…

介观与纳米尺度物理 · 物理学 2015-05-13 Björn Kubala , Max Ludwig , Florian Marquardt

Quantum entanglement is the key to many applications like quantum key distribution, quantum teleportation, and quantum sensing. However, reliably generating quantum entanglement in macroscopic systems has proved to be a challenge. Here, we…

Due to the weakness of gravitational coupling, all quantum experiments up to date in which gravity plays a role utilized the field of the Earth. Since this field undergoes practically undetectable back-action from quantum particles, it…

量子物理 · 物理学 2024-05-16 Ankit Kumar

Optomechanical systems are a promising candidate for the implementation of quantum interfaces for storing and redistributing quantum information. Here we focus on the case of a high-finesse optical cavity with a thin vibrating…

量子物理 · 物理学 2015-05-20 M. Karuza , C. Biancofiore , M. Galassi , R. Natali , G. Di Giuseppe , P. Tombesi , D. Vitali

We show theoretically that multipartite entanglement is generated on a massive scale in the spectrum, or optical frequency comb, of a single optical parametric oscillator (OPO) emitting well above threshold. In this system, the quantum…

量子物理 · 物理学 2012-06-20 Reihaneh Shahrokhshahi , Olivier Pfister

Quantum entanglement, a key element for quantum information is generated with a cavity-magnomechanical system. It comprises of two microwave cavities, a magnon mode and a vibrational mode, and the last two elements come from a YIG sphere…

量子物理 · 物理学 2021-01-26 Zhi-Bo Yang , Jin-Song Liu , Ai-Dong Zhu , Hong-Yu Liu , Rong-Can Yang

Entanglement in high-dimensional quantum systems, where one or more degrees of freedom of light are involved, offers increased information capacities and enables new quantum protocols. Here, we demonstrate a functional source of…

The gravitational deflection of massless and massive particles, both with and without spin, has been extensively studied. This paper discusses the lensing of a particle which oscillates between two interaction eigenstates. The deflection…

高能天体物理现象 · 物理学 2018-04-25 J-F. Glicenstein

We give a theoretical study of a double-cavity system in which a mechanical resonator beam is coupled to two cavity modes on both sides through radiation pressures. The indirect coupling between the cavities via the resonator sets up a…

量子物理 · 物理学 2015-08-12 Tiantian Huan , Rigui Zhou , Hou Ian

We study entanglement of the motional degrees of freedom of two tethered and optically trapped microdisks inside a single cavity. By properly choosing the position of the trapped objects in the optical cavity and driving proper modes of the…

量子物理 · 物理学 2015-02-18 Mehdi Abdi , Michael J. Hartmann

We propose a scheme to generate robust stationary continuous-variable entanglement in optomechanical systems, based on geometrical nonlinearity that occurs for large mechanical displacements. Such nonlinearity is often used to correct the…

量子物理 · 物理学 2014-09-05 Philippe Djorwé , S. G. Nana Engo , Paul Woafo

We provide a systemic theory to entangle excitons with microcavity photons. This is realized by adopting an exciton-optomechanics system and introducing a nonlinear dispersive interaction with a mechanical oscillator. We show that when…

量子物理 · 物理学 2024-05-01 Xuan Zuo , Zhi-Yuan Fan , Hang Qian , Jie Li

A significant problem facing next-generation quantum technologies is how to generate and manipulate macroscopic entanglement in light and matter systems. Here we report a new regime of dynamical light-matter behavior in which a giant,…

量子物理 · 物理学 2015-10-02 O. L. Acevedo , L. Quiroga , F. J. Rodríguez , N. F. Johnson

Quantum entanglement of mechanical systems emerges when distinct objects move with such a high degree of correlation that they can no longer be described separately. Although quantum mechanics presumably applies to objects of all sizes,…

Optical cavities with moving mirrors provide a versatile platform for exploring radiation-matter interactions and optically mediated mechanical effects, whose control has wide technological implications. However, capturing the coupled…

光学 · 物理学 2026-01-06 Francesco Lorenzi , Maria Guglielmina Pelizzo , Luca Salasnich

We investigate the quantum entanglement dynamics of undriven anharmonic (nonlinear) oscillators with quartic potentials. We first consider the indirect interaction between two such nonlinear oscillators mediated by a third, linear…

量子物理 · 物理学 2012-03-14 Chaitanya Joshi , Mats Jonson , Erika Andersson , Patrik Ohberg

In this manuscript, we investigate the enhancement of the transfer of quantum correlations from squeezed light to movable mirrors within an optomechanical system. This enhancement was achieved via the injection of squeezed light in the…

量子物理 · 物理学 2023-11-06 Noura Chabar , M'bark Amghar , Mohamed Amazioug , Mostafa Nassik

We present experimental demonstration of quadrature and polarization entanglement generated via the interaction between a coherent linearly polarized field and cold atoms in a high finesse optical cavity. The non linear atom-field…

量子物理 · 物理学 2009-11-10 Vincent Josse , Aurelien Dantan , Alberto Bramati , Michel Pinard , Elisabeth Giacobino

It was shown [New J. Phys. 17, 103037 (2015)] that large and robust entanglement between two different mechanical resonators could be achieved, either dynamically or in the steady state, in an optomechanical system in which the two…

量子物理 · 物理学 2017-04-18 Jie Li , Gang Li , Stefano Zippilli , David Vitali , Tiancai Zhang

We propose a method to produce entangled spin squeezed states of a large number of atoms inside an optical cavity. By illuminating the atoms with bichromatic light, the coupling to the cavity induces pairwise exchange of excitations which…

量子物理 · 物理学 2009-11-07 Anders S. Sorensen , Klaus Molmer