= Squeezed states of light
{wiki=Squeezed_states_of_light}
Squeezed states of light are a type of quantum state of electromagnetic radiation that exhibit reduced quantum uncertainty in one variable (e.g., phase or amplitude) at the expense of increased uncertainty in the conjugate variable, in accordance with the Heisenberg uncertainty principle. This manipulation of uncertainty makes squeezed states an important resource in quantum optics, quantum information, and metrology.
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