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添加277字节 、 2021年8月11日 (三) 16:59
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The experiment as described is a purely theoretical one, and the machine proposed is not known to have been constructed. However, successful experiments involving similar principles, e.g. superpositions of relatively large (by the standards of quantum physics) objects have been performed. These experiments do not show that a cat-sized object can be superposed, but the known upper limit on "cat states" has been pushed upwards by them. In many cases the state is short-lived, even when cooled to near absolute zero.
 
The experiment as described is a purely theoretical one, and the machine proposed is not known to have been constructed. However, successful experiments involving similar principles, e.g. superpositions of relatively large (by the standards of quantum physics) objects have been performed. These experiments do not show that a cat-sized object can be superposed, but the known upper limit on "cat states" has been pushed upwards by them. In many cases the state is short-lived, even when cooled to near absolute zero.
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薛定谔的猫实验是纯理论性的,所涉及的实验装置并未实际建成,然而,很多涉及类似原理的实验已经取得成功,例如一些相对较大(按量子物理学的标准)系统的叠加态已经实现。这些实验并没有表明与猫大小一样的物体可以处于重叠态,但是这些实验提升了存在“猫态”的系统的尺寸上限。在很多实验中,即使冷却到接近绝对零度,这种状态也只能短暂存在。
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薛定谔的猫实验是纯理论性的,所涉及的实验装置并未实际制造,然而,很多涉及类似原理的实验已经取得成功,例如一些相对较大(按量子物理学的标准)系统的叠加态已经实现。这些实验并没有表明与猫大小一样的物体可以处于重叠态,但是这些实验提升了存在“猫态”的系统的尺寸上限。在很多实验中,即使冷却到接近绝对零度,这种状态也只能短暂存在。
    
* A "cat state" has been achieved with photons.<ref>{{cite web|url=http://www.science20.com/news_articles/schr%C3%B6dingers_cat_now_made_light|title=Schrödinger's Cat Now Made Of Light|date=27 August 2014|website=www.science20.com|url-status=live|archiveurl=https://web.archive.org/web/20120318091956/http://www.science20.com/news_articles/schr%C3%B6dingers_cat_now_made_light|archivedate=18 March 2012}}</ref><br>
 
* A "cat state" has been achieved with photons.<ref>{{cite web|url=http://www.science20.com/news_articles/schr%C3%B6dingers_cat_now_made_light|title=Schrödinger's Cat Now Made Of Light|date=27 August 2014|website=www.science20.com|url-status=live|archiveurl=https://web.archive.org/web/20120318091956/http://www.science20.com/news_articles/schr%C3%B6dingers_cat_now_made_light|archivedate=18 March 2012}}</ref><br>
多光子的“猫态”已经实验
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多光子的“猫态”已经实现。
    
* A beryllium ion has been trapped in a superposed state.<ref>[http://www.quantumsciencephilippines.com/seminar/seminar-topics/SchrodingerCatAtom.pdf C. Monroe, et al.  ''A "Schrödinger Cat" Superposition State of an Atom''] {{webarchive|url=https://web.archive.org/web/20120107013418/http://www.quantumsciencephilippines.com/seminar/seminar-topics/SchrodingerCatAtom.pdf |date=2012-01-07 }}</ref><br>
 
* A beryllium ion has been trapped in a superposed state.<ref>[http://www.quantumsciencephilippines.com/seminar/seminar-topics/SchrodingerCatAtom.pdf C. Monroe, et al.  ''A "Schrödinger Cat" Superposition State of an Atom''] {{webarchive|url=https://web.archive.org/web/20120107013418/http://www.quantumsciencephilippines.com/seminar/seminar-topics/SchrodingerCatAtom.pdf |date=2012-01-07 }}</ref><br>
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* An experiment involving a [[superconducting quantum interference device]] ("SQUID") has been linked to the theme of the thought experiment: "The superposition state does not correspond to a billion electrons flowing one way and a billion others flowing the other way. Superconducting electrons move en masse. All the superconducting electrons in the SQUID flow both ways around the loop at once when they are in the Schrödinger's cat state."<ref>[https://physicsworld.com/a/schrodingers-cat-comes-into-view/ Physics World: ''Schrödinger's cat comes into view'']</ref><br>
 
* An experiment involving a [[superconducting quantum interference device]] ("SQUID") has been linked to the theme of the thought experiment: "The superposition state does not correspond to a billion electrons flowing one way and a billion others flowing the other way. Superconducting electrons move en masse. All the superconducting electrons in the SQUID flow both ways around the loop at once when they are in the Schrödinger's cat state."<ref>[https://physicsworld.com/a/schrodingers-cat-comes-into-view/ Physics World: ''Schrödinger's cat comes into view'']</ref><br>
涉及超导量子干涉装置(“ SQUID”)的实验已与思想实验的主题联系在一起:“叠加态并不对应于十亿个电子以一种方式流动,十亿个电子以另一种方式流动。超导电子运动整体上,当SQUID中的所有超导电子都处于薛定谔的猫形状态时,它们立即沿环路双向流动。
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一项涉及超导量子干涉仪( SQUID)的实验与薛定谔思想实验的主题联系在一起:“叠加态并不是说十亿个电子正向流动,十亿个电子反向流动。超导电子总是沿同一方向移动,当超导量子干涉仪中的所有超导电子都处于薛定谔的猫态时,它们会同时在回路中双向流动。“
    
* A [[piezoelectric]] "tuning fork" has been constructed, which can be placed into a superposition of vibrating and non vibrating states. The resonator comprises about 10 trillion atoms.<ref>[http://www.scientificamerican.com/article.cfm?id=quantum-microphone Scientific American :'' Macro-Weirdness: "Quantum Microphone" Puts Naked-Eye Object in 2 Places at Once: A new device tests the limits of Schrödinger's cat''] {{webarchive|url=https://web.archive.org/web/20120319021316/http://www.scientificamerican.com/article.cfm?id=quantum-microphone |date=2012-03-19 }}</ref><br>
 
* A [[piezoelectric]] "tuning fork" has been constructed, which can be placed into a superposition of vibrating and non vibrating states. The resonator comprises about 10 trillion atoms.<ref>[http://www.scientificamerican.com/article.cfm?id=quantum-microphone Scientific American :'' Macro-Weirdness: "Quantum Microphone" Puts Naked-Eye Object in 2 Places at Once: A new device tests the limits of Schrödinger's cat''] {{webarchive|url=https://web.archive.org/web/20120319021316/http://www.scientificamerican.com/article.cfm?id=quantum-microphone |date=2012-03-19 }}</ref><br>
甲压电“音叉”已经构造,其可被置于振动和非振动状态的叠加。谐振器包含约10万亿个原子。
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一种压电“音叉”已经被制造出来,可被置于振动和非振动状态的叠加态。谐振器包含约10万亿个原子。
    
*  An experiment involving a flu virus has been proposed.<ref>{{cite web|url=http://www.technologyreview.com/blog/arxiv/24101/|title=How to Create Quantum Superpositions of Living Things|first=Emerging Technology from the|last=arXiv|publisher=}}</ref><br>
 
*  An experiment involving a flu virus has been proposed.<ref>{{cite web|url=http://www.technologyreview.com/blog/arxiv/24101/|title=How to Create Quantum Superpositions of Living Things|first=Emerging Technology from the|last=arXiv|publisher=}}</ref><br>
已经提出了涉及流感病毒的实验。
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一项涉及流感病毒的实验已被提出。
    
* An experiment involving a bacterium and an electromechanical oscillator has been proposed.<ref>{{cite web|url=http://physicsworld.com/cws/article/news/2015/sep/21/could-schrodingers-bacterium-be-placed-in-a-quantum-superposition|title=Could 'Schrödinger's bacterium' be placed in a quantum superposition?|website=physicsworld.com|url-status=live|archiveurl=https://web.archive.org/web/20160730174613/http://physicsworld.com/cws/article/news/2015/sep/21/could-schrodingers-bacterium-be-placed-in-a-quantum-superposition|archivedate=2016-07-30}}</ref><br>
 
* An experiment involving a bacterium and an electromechanical oscillator has been proposed.<ref>{{cite web|url=http://physicsworld.com/cws/article/news/2015/sep/21/could-schrodingers-bacterium-be-placed-in-a-quantum-superposition|title=Could 'Schrödinger's bacterium' be placed in a quantum superposition?|website=physicsworld.com|url-status=live|archiveurl=https://web.archive.org/web/20160730174613/http://physicsworld.com/cws/article/news/2015/sep/21/could-schrodingers-bacterium-be-placed-in-a-quantum-superposition|archivedate=2016-07-30}}</ref><br>
已经提出了涉及细菌和机电振荡器的实验。
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一项利用机电振荡器和细菌的实验已被提出。
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In quantum computing the phrase "cat state" sometimes refers to the GHZ state, wherein several qubits are in an equal superposition of all being 0 and all being 1; e.g.,
 
In quantum computing the phrase "cat state" sometimes refers to the GHZ state, wherein several qubits are in an equal superposition of all being 0 and all being 1; e.g.,
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在量子计算中,短语“猫状态”有时是指 GHZ 态,其中几个量子位都处于等量叠加态,全部为0,全部为1; 例如,
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在量子计算中,“猫态”有时是指 GHZ态(Greenberg-Horne-Zeilinger态),其中若干量子比特处于全为0和全为1两种态的相等叠加态,例如:
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According to at least one proposal, it may be possible to determine the state of the cat before observing it.
 
According to at least one proposal, it may be possible to determine the state of the cat before observing it.
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至少有一种建议认为,在观察猫之前可能确定它的状态。
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至少有一种观点认为,在观察猫之前可能确定它的状态。
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Wigner's friend is a variant on the experiment with two human observers: the first makes an observation on whether a flash of light is seen and then communicates his observation to a second observer. The issue here is, does the wave function "collapse" when the first observer looks at the experiment, or only when the second observer is informed of the first observer's observations?
 
Wigner's friend is a variant on the experiment with two human observers: the first makes an observation on whether a flash of light is seen and then communicates his observation to a second observer. The issue here is, does the wave function "collapse" when the first observer looks at the experiment, or only when the second observer is informed of the first observer's observations?
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维格纳的朋友是该实验的一个变体,有两个人类观察者: 第一个观察者观察一道闪光是否被看到,然后将他的观察结果传达给第二个观察者。这里的问题是,当第一个观察者观察实验时,波函数是“坍缩”的,还是只有当第二个观察者被告知第一个观察者的观察时,波函数才会“坍缩” ?
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”维格纳的朋友“是薛定谔实验的一个变体,包含两个人类观察者:第一个观察者通过观察确定是否看到闪光,然后将观察结果传达给第二个观察者。这里的问题是,波函数何时”坍缩“?是在第一个观察者观察实验时,还是只有当第二个观察者被告知第一个观察者的观察结果时?
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  | id =|bibcode = 2008PhRvL.100q1301K }}</ref>
 
  | id =|bibcode = 2008PhRvL.100q1301K }}</ref>
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另一方面,一些著名的物理学家甚至认为,通过一种伪薛定谔猫效应,天文学家在1998年对宇宙暗能量的观测可能会”缩短宇宙的预期寿命“,但该观点争议非常有争议。
    
  | id =|bibcode = 2008PhRvL.100q1301K }}</ref>
 
  | id =|bibcode = 2008PhRvL.100q1301K }}</ref>
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