Quantum Squeezing of Micromechanical Motion
نویسندگان
چکیده
منابع مشابه
QUANTUM MECHANICS. Quantum squeezing of motion in a mechanical resonator.
According to quantum mechanics, a harmonic oscillator can never be completely at rest. Even in the ground state, its position will always have fluctuations, called the zero-point motion. Although the zero-point fluctuations are unavoidable, they can be manipulated. Using microwave frequency radiation pressure, we have manipulated the thermal fluctuations of a micrometer-scale mechanical resonat...
متن کاملSqueezing of light via reflection from a silicon micromechanical resonator
Amir H. Safavi-Naeini, 2, ∗ Simon Gröblacher, 2, ∗ Jeff T. Hill, 2, ∗ Jasper Chan, Markus Aspelmeyer, and Oskar Painter 2, 4, † Kavli Nanoscience Institute and Thomas J. Watson, Sr., Laboratory of Applied Physics, California Institute of Technology, Pasadena, CA 91125 Institute for Quantum Information and Matter, California Institute of Technology, Pasadena, CA 91125 Vienna Center for Quantum S...
متن کاملQuantum spin squeezing
This paper reviews quantum spin squeezing, which characterizes the sensitivity of a state with respect to SU(2) rotations, and is significant for both entanglement detection and high-precision metrology. We first present various definitions of spin squeezing parameters, explain their origin and properties for typical states, and then discuss spinsqueezed states produced with nonlinear twisting ...
متن کاملQuantum-enhanced micromechanical displacement sensitivity.
We report on a hitherto unexplored application of squeezed light: for quantum-enhancement of mechanical transduction sensitivity in microcavity optomechanics. Using a toroidal silica microcavity, we experimentally demonstrate measurement of the transduced phase modulation signal in the frequency range 4-5.8 MHz with a sensitivity -0.72(±0.01) dB below the shot noise level. This is achieved for ...
متن کاملObservation of non-Markovian micromechanical Brownian motion
All physical systems are to some extent open and interacting with their environment. This insight, basic as it may seem, gives rise to the necessity of protecting quantum systems from decoherence in quantum technologies and is at the heart of the emergence of classical properties in quantum physics. The precise decoherence mechanisms, however, are often unknown for a given system. In this work,...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physics
سال: 2015
ISSN: 1943-2879
DOI: 10.1103/physics.8.119