宏观物体量子理论的线振动验证实验-猫眼课题宝

宏观物体量子理论的线振动验证实验

批准号：

18K18729

负责人：

安東正樹

金额：

$3.99万

依托单位：

The University of Tokyo

依托单位国家：

日本

项目类别：

Grant-in-Aid for Challenging Research (Exploratory)

财政年份：

2018

资助国家：

日本

项目状态：

已结题

起止时间：

2018-06-29 至 2024-03-31

来源：

https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-18K18729/

关键词：

巨視的量子力学 CSL理論熱雑音巨視系量子論

中文摘要

翻译

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英文摘要

本研究の目的は，巨視的な物体も記述できるような拡張量子力学の理論を実験的に検証することである．量子力学を巨視スケールにまで拡張した理論の枠組みの一つとして，質量が存在することによって量子的性質が失われるという，重力デコヒーレンスと呼ばれる考え方が提案されている．それに対して，本研究では，CSL (Continuous Spontaneous Localization)模型と呼ばれる理論に注目し，その検証を行う．CSL模型は，巨視的な物体では「測定」という操作が量子状態に影響を与えないような理論であり，微視的な極限では通常の量子力学におけるシュレディンガー方程式に帰着し，粒子数の多い極限では測定に依存しない結果を与えるという理論である．非相対論的な質点の力学しか記述できないなど，物理学の理論としては不十分な点も多いが，現在までに数学的な矛盾は見つかっておらず，従来の量子力学を拡張する可能性を持った理論模型である．2022年度には，CSLモデル検証実験の再セットアップを進めた．地面振動や空気の揺らぎの影響が大きいことが明らかになっていたことから，設計を見直した．真空中におかれた懸架系で独立に懸架された2つの鏡で光共振器を構成し，2つのレーザー光を双方から入射する系を設計・製作し，それら全体を安定に動作させることに成功した．レーザー干渉計の基線長変動，鏡の角度変動など，動作に用いる制御系の特性の評価も進め，適切に動作していることを確認した．

期刊论文(12)

专著(0)

科研奖励(0)

会议论文

Improving force sensitivity by amplitude measurements of light reflected from a detuned optomechanical cavity

DOI： 10.1103/physreva.104.l031501

发表时间： 2021-05

期刊：

Physical Review A

影响因子： 2.9

作者：

[K. Komori;T. Kawasaki;S. Otabe;Y. Enomoto;Y. Michimura;M. Ando]

通讯作者： K. Komori;T. Kawasaki;S. Otabe;Y. Enomoto;Y. Michimura;M. Ando

TOBA: Torsion-Bar Gravitational-Wave Antenna

TOBA：扭杆引力波天线

DOI： --

发表时间： 2018

期刊：

影响因子： --

作者：

[野村晋太郎, Shintaro Nomura, Masaki Ando]

通讯作者： Masaki Ando

Prospects for observing and localizing gravitational-wave transients with Advanced LIGO, Advanced Virgo and KAGRA.

DOI： 10.1007/s41114-018-0012-9

发表时间： 2018

期刊：

Living reviews in relativity

影响因子： 40.6

作者：

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KAGRA Collaboration, LIGO Scientific Collaboration and Virgo Collaboration]

通讯作者： KAGRA Collaboration, LIGO Scientific Collaboration and Virgo Collaboration

Attonewton-meter torque sensing with a macroscopic optomechanical torsion pendulum

DOI： 10.1103/physreva.101.011802

发表时间： 2020-01-17

期刊：

PHYSICAL REVIEW A

影响因子： 2.9

作者：

[Komori, Kentaro, Enomoto, Yutaro, Ando, Masaki]

通讯作者： Ando, Masaki

Advanced Interferometric Gravitational-wave Detectors: Essentials of Gravitational Wave Detectors

先进干涉引力波探测器：引力波探测器的要点