Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Entangled State Represented by Pendulum Oscillations

Masataka Ohta

Published Mar 1, 2019• 0 citations
OpenAlex

Abstract

Just as binary quantum state is represented by pendulum oscillations, quantum state involving multiple quanta, including entangled one, can be represented by oscillations of multiple pendulums.

Related papers

Pendulum Represents Binary Quantum State of Oscillations

Masataka Ohta

There is a straightforward correspondence between superposition of polarization modes of photons and that of classical radio waves. While classical particles cannot be superpositioned, classical waves can be, which is within classical intuition. Even more intuitively, two dimensional oscillations of a pendulum represent oscillating binary quantum state such as polarization state of photons.

•May 1, 2018•0 citations

Nonlinear entangled state representation in quantum mechanics

Hong-Yi Fan, Hailing Cheng

Physics Letters A•Mar 1, 2002•9 citations

Entangled states in quantum mechanics

Jānis Ruža

Physica E Low-dimensional Systems and Nanostructures•Jun 25, 2009•6 citations

Preparing mechanical squeezing of a macroscopic pendulum near quantum regimes

Nobuyuki Matsumoto, Naoki Yamamoto

We present the mechanical squeezing of a mg-scale suspended mirror (i.e. a pendulum) near quantum regimes through continuous linear position measurement. The experiment involved the pendulum interacting with photon coherent fields in a detuned optical cavity. The position uncertainty in the measured data is reduced and squeezed to $470$ times the zero-point amplitude $x_{\rm zpf}$ with a purity of about 0.0004, by means of optimal state estimation through causal Wiener filtering. The purity of the squeezed state is clearly maximized by the Wiener filter, based on precisely identified optomechanical parameters. This is the first step for measurement-based quantum control of macroscopic pendulums, e.g. generation of an entanglement state between macroscopic pendulums. Such quantum control will provide a direct insight into the quantum to classical transition and will pave the way to test semiclassical gravity and gravity sourced by macroscopic quantum oscillators.

•Aug 25, 2020•2 citations

Conditional mechanical squeezing of a macroscopic pendulum near quantum regimes

Nobuyuki Matsumoto, Naoki Yamamoto

We present the mechanical squeezing of a mg-scale suspended mirror (i.e. a pendulum) near quantum regimes through continuous linear position measurement. The experiment involved the pendulum interacting with photon coherent fields in a detuned optical cavity. The position uncertainty in the measured data is reduced and squeezed to $470$ times the zero-point amplitude $x_{\rm zpf}$ with a purity of about 0.0004, by means of optimal state estimation through causal Wiener filtering. The purity of the squeezed state is clearly maximized by the Wiener filter, based on precisely identified optomechanical parameters. This is the first step for measurement-based quantum control of macroscopic pendulums, e.g. generation of an entanglement state between macroscopic pendulums. Such quantum control will provide a direct insight into the quantum to classical transition and will pave the way to test semiclassical gravity and gravity sourced by macroscopic quantum oscillators.

•Aug 25, 2020•0 citations

New Tripartite Nonlinear Entangled State Representation in Quantum Mechanics

Kuang Kuang, Mai-Hua, Ma +3 more

理论物理通讯：英文版•Jan 1, 2008•0 citations
We present the mechanical squeezing of a mg-scale suspended mirror (i.e. a pendulum) near quantum regimes through continuous linear position measurement. The experiment involved the pendulum interacting with photon coherent fields in a detuned optical cavity. The position uncertainty in the measured data is reduced and squeezed to 470470470 times the zero-point amplitude xzpfx_{\rm zpf}xzpf​ with a purity of about 0.0004, by means of optimal state estimation through causal Wiener filtering. The purity of the squeezed state is clearly maximized by the Wiener filter, based on precisely identified optomechanical parameters. This is the first step for measurement-based quantum control of macroscopic pendulums, e.g. generation of an entanglement state between macroscopic pendulums. Such quantum control will provide a direct insight into the quantum to classical transition and will pave the way to test semiclassical gravity and gravity sourced by macroscopic quantum oscillators.
We present the mechanical squeezing of a mg-scale suspended mirror (i.e. a pendulum) near quantum regimes through continuous linear position measurement. The experiment involved the pendulum interacting with photon coherent fields in a detuned optical cavity. The position uncertainty in the measured data is reduced and squeezed to 470470470 times the zero-point amplitude xzpfx_{\rm zpf}xzpf​ with a purity of about 0.0004, by means of optimal state estimation through causal Wiener filtering. The purity of the squeezed state is clearly maximized by the Wiener filter, based on precisely identified optomechanical parameters. This is the first step for measurement-based quantum control of macroscopic pendulums, e.g. generation of an entanglement state between macroscopic pendulums. Such quantum control will provide a direct insight into the quantum to classical transition and will pave the way to test semiclassical gravity and gravity sourced by macroscopic quantum oscillators.