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<p></p> <p><b>New page</b></p><div>{{Short description|Mathematical object representing a physical observable}}<br /> <br /> {{Quantum methods backlink|Mathematical methods}}<br /> <br /> An &#039;&#039;&#039;operator&#039;&#039;&#039; is a mathematical object that acts on a [[Physics:Quantum methods/basis|basis]] or state to produce another state. In quantum theory, operators represent physical quantities such as position, momentum, and energy.<br /> <br /> &lt;div style=&quot;float:right; border:1px solid #e0d890; background:#fff8cc; padding:6px; margin:0 0 1em 1em; width:320px;&quot;&gt;<br /> [[File:Quantum_operator.png|300px]]<br /> &lt;div style=&quot;font-size:90%;&quot;&gt;Operators act on states to produce measurable quantities.&lt;/div&gt;<br /> &lt;/div&gt;<br /> <br /> == Description ==<br /> Operators encode the measurable properties of a system. Applying an operator to a state yields information about the corresponding physical quantity.<br /> <br /> == Properties ==<br /> <br /> * acts on states or functions<br /> * represents observables<br /> * central to quantum formalism<br /> <br /> =See also=<br /> {{#invoke:PhysicsQC|tocHeadingAndList|Physics:Quantum basics/See also}}<br /> <br /> =References=<br /> {{reflist|3}}<br /> <br /> {{Author|Harold Foppele}}<br /> {{Sourceattribution|Physics:Quantum methods/operator|1}}</div>

imported>WikiHarold