16ミクログラムの機械振動器のシュロディンガーキャット状態
Marius Bild1,2, Matteo Fadel1,2, Yu Yang1,2
1Department of Physics, ETH Zürich, 8093 Zürich, Switzerland.
まとめ
科学者たちは 機械的共鳴器で 顕微鏡の量子スーパーポジション状態を作り 量子-古典的な境界に挑戦しました この研究は,より大きなシステムにおける量子力学とその応用を研究しています.
科学分野:
- 量子力学
- 顕微鏡量子現象について
- 凝縮物質物理学
背景:
- 量子力学では 超置換状態のシステムも許されます
- マクロスコープの重組は通常観察されず,量子-古典的分裂を生成する.
- この変化を理解することは 物理学の根本的な課題です
研究 の 目的:
- 量子スーパーポジション状態のマクロスコーピックオブジェクトを準備し,研究する.
- これらの状態の行動と不協和性を調査する.
- 量子力学と古典物理学の境界線を探求する
主な方法:
- 量子スーパーポジション状態の機械的共振器の準備
- シュロディンガーのキャット状態をマクロスコープの重置で利用する.
- スーパーポジションのサイズと相を制御し,デコヘレンスのダイナミクスを分析します.
主要な成果:
- 逆相振動のスーパーポジションに ~10 ^ 17の原子を持つ機械的共振器を準備しました.
- マクロスコープ上の重なりの大きさと相を制御することが示された.
- これらの量子状態に影響を与える 分離過程を調査した.
結論:
- この研究は,機械的共振器でマクロスコープの量子状態を創造する可能性を実証しています.
- 結果は量子解散と量子から古典への移行の洞察を提供します.
- 量子情報処理と精度測定 (計量学) の潜在的な応用
関連する概念動画
The Quantum-Mechanical Model of an Atom
42.6K
Shortly after de Broglie published his ideas that the electron in a hydrogen atom could be better thought of as being a circular standing wave instead of a particle moving in quantized circular orbits, Erwin Schrödinger extended de Broglie’s work by deriving what is now known as the Schrödinger equation. When Schrödinger applied his equation to hydrogen-like atoms, he was able to reproduce Bohr’s expression for the energy and, thus, the Rydberg formula governing hydrogen spectra.
42.6K
Oscillations In An LC Circuit
2.4K
An idealized LC circuit of zero resistance can oscillate without any source of emf by shifting the energy stored in the circuit between the electric and magnetic fields. In such an LC circuit, if the capacitor contains a charge q before the switch is closed, then all the energy of the circuit is initially stored in the electric field of the capacitor. This energy is given by
2.4K
Electron Orbital Model
68.1K
Orbitals are the areas outside of the atomic nucleus where electrons are most likely to reside. They are characterized by different energy levels, shapes, and three-dimensional orientations. The location of electrons is described most generally by a shell or principal energy level, then by a subshell within each shell, and finally, by individual orbitals found within the subshells.
The first shell is closest to the nucleus, and it has only one subshell with a single spherical orbital called the...
The first shell is closest to the nucleus, and it has only one subshell with a single spherical orbital called the...
68.1K
The Bohr Model
58.2K
Following the work of Ernest Rutherford and his colleagues in the early twentieth century, the picture of atoms consisting of tiny dense nuclei surrounded by lighter and even tinier electrons continually moving about the nucleus was well established. This picture was called the planetary model since it pictured the atom as a miniature “solar system” with the electrons orbiting the nucleus like planets orbiting the sun. The simplest atom is hydrogen, consisting of a single proton as...
58.2K
Forced Oscillations
6.6K
When an oscillator is forced with a periodic driving force, the motion may seem chaotic. The motions of such oscillators are known as transients. After the transients die out, the oscillator reaches a steady state, where the motion is periodic, and the displacement is determined.
6.6K
Damped Oscillations
5.8K
In the real world, oscillations seldom follow true simple harmonic motion. A system that continues its motion indefinitely without losing its amplitude is termed undamped. However, friction of some sort usually dampens the motion, so it fades away or needs more force to continue. For example, a guitar string stops oscillating a few seconds after being plucked. Similarly, one must continually push a swing to keep a child swinging on a playground.
Although friction and other non-conservative...
Although friction and other non-conservative...
5.8K


