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  2. Quantum entanglement - Wikipedia

    en.wikipedia.org/wiki/Quantum_entanglement

    Quantum entanglement has been demonstrated experimentally with photons, [12] [13] electrons, [14] [15] top quarks, [16] molecules [17] and even small diamonds. [18] The use of quantum entanglement in communication and computation is an active area of research and development.

  3. Quantum eraser experiment - Wikipedia

    en.wikipedia.org/wiki/Quantum_eraser_experiment

    This experiment involves an apparatus with two main sections. After two entangled photons are created, each is directed into its own section of the apparatus. Anything done to learn the path of the entangled partner of the photon being examined in the double-slit part of the apparatus will influence the second photon, and vice versa.

  4. Quantum optics - Wikipedia

    en.wikipedia.org/wiki/Quantum_optics

    in 2022, Alain Aspect, John Clauser and Anton Zeilinger "for experiments with entangled photons, establishing the violation of Bell inequalities and pioneering quantum information science". [2] in 2012, Serge Haroche and David J. Wineland "for ground-breaking experimental methods that enable measuring & manipulation of individual quantum ...

  5. Entangled photons on a chip could lead to super-fast computers

    www.aol.com/news/2015-02-01-entangled-photons-on...

    Its researchers have developed a tiny emitter that could pump out entangled photons as part of an otherwise ordinary silicon chip. The device, which uses a ring shape to both rope in and emit ...

  6. Entanglement swapping - Wikipedia

    en.wikipedia.org/wiki/Entanglement_swapping

    Entanglement swapping has two pairs of entangled particles: (A, B) and (C, D). Pair of particles (A, B) is initially entangled, as is the pair (C, D). The pair (B, C) taken from the original pairs, is projected onto one of the four possible Bell states, a process called a Bell state measurement. The unmeasured pair of particles (A, D) can ...

  7. Quantum decoherence - Wikipedia

    en.wikipedia.org/wiki/Quantum_decoherence

    In classical scattering of a target body by environmental photons, the motion of the target body will not be changed by the scattered photons on the average. In quantum scattering, the interaction between the scattered photons and the superposed target body will cause them to be entangled, thereby delocalizing the phase coherence from the target body to the whole system, rendering the ...

  8. Photon - Wikipedia

    en.wikipedia.org/wiki/Photon

    Photons seem well-suited to be elements of an extremely fast quantum computer, and the quantum entanglement of photons is a focus of research. Nonlinear optical processes are another active research area, with topics such as two-photon absorption, self-phase modulation, modulational instability and optical parametric oscillators.

  9. Quantum sensor - Wikipedia

    en.wikipedia.org/wiki/Quantum_sensor

    In photonics and quantum optics, photonic quantum sensing leverages entanglement, single photons and squeezed states to perform extremely precise measurements. Optical sensing makes use of continuously variable quantum systems such as different degrees of freedom of the electromagnetic field, vibrational modes of solids, and Bose–Einstein condensates. [5]