Scientists present method for entangling macroscopic objects

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The scientistsacute scheme for detecting macroscopic entanglement: two laser pulses reflect off two identical oscillators exciting a vibrational mode which generates optical sideband modes. After a beam splitter mixes the quotStokesquot modes (red) d ...
The scientists' scheme for detecting macroscopic entanglement: two laser pulses reflect off two identical oscillators, exciting a vibrational mode which generates optical sideband modes. After a beam splitter mixes the "Stokes" modes (red), detectors perform measurements which turn the optomechanical entanglement into mechanical entanglement. Credit: Stefano Pirandola, et al.

Building upon recent studies on optomechanical entanglement with lasers and mirrors, a group of scientists has developed a theoretical model using entanglement swapping in order to entangle two micromechanical oscillators. This ability could lead to advances in information processing, as well as other applications that use micromechanical resonators, such as electrometers, displacement detectors, and radio frequency signal processors, wrote scientists Stefano Pirandola et al. in a recent Physical Review Letters.


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