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  2. Mach–Zehnder interferometer - Wikipedia

    en.wikipedia.org/wiki/MachZehnder_interferometer

    The MachZehnder interferometer is a device used to determine the relative phase shift variations between two collimated beams derived by splitting light from a single source. The interferometer has been used, among other things, to measure phase shifts between the two beams caused by a sample or a change in length of one of the paths.

  3. Interferometric visibility - Wikipedia

    en.wikipedia.org/wiki/Interferometric_visibility

    Visibility in a MachZehnder interferometer is constant. Visibility in this double-slit interference is maximum (80%) at the center. Visibility in Hong–Ou–Mandel interference. At large delays the photons do not interfere. At zero delays, the detection of coincident photon pairs is suppressed.

  4. Quantum eraser experiment - Wikipedia

    en.wikipedia.org/wiki/Quantum_eraser_experiment

    In quantum mechanics, a quantum eraser experiment is an interferometer experiment that demonstrates several fundamental aspects of quantum mechanics, including quantum entanglement and complementarity. [1] [2]: 328 The quantum eraser experiment is a variation of Thomas Young's classic double-slit experiment. It establishes that when action is ...

  5. List of types of interferometers - Wikipedia

    en.wikipedia.org/wiki/List_of_types_of...

    Linnik interferometer (microscopy) LUPI variant of Michelson; Lummer–Gehrcke interferometer; MachZehnder interferometer; Martin–Puplett interferometer; Michelson interferometer; Mirau interferometer (also known as a Mirau objective) (microscopy) Moiré interferometer (see moiré pattern) Multi-beam interferometer ; Near-field interferometer

  6. Quantum Fisher information - Wikipedia

    en.wikipedia.org/wiki/Quantum_Fisher_information

    This formula can be used to put a lower on the quantum Fisher information from experimental results. [24] If equals the symmetric logarithmic derivative then the inequality is saturated. [25] For the case of unitary dynamics, the quantum Fisher information is the convex roof of the variance.

  7. Planar lightwave circuit interferometer - Wikipedia

    en.wikipedia.org/wiki/Planar_lightwave_circuit...

    An interferometer is an optical measuring device using the principle of light waves canceling and reinforcing each other. ... e.g. Mach-Zehnder, [1] Michelson, [2] ...

  8. Electro-optic modulator - Wikipedia

    en.wikipedia.org/wiki/Electro-optic_modulator

    A phase modulating EOM can also be used as an amplitude modulator by using a MachZehnder interferometer. This alternative technique is often used in integrated optics where the requirements of phase stability is more easily achieved. The beam splitter divides the laser light into two paths, one of which has a phase modulator as described above.

  9. Wheeler's delayed-choice experiment - Wikipedia

    en.wikipedia.org/wiki/Wheeler's_delayed-choice...

    Wheeler's cosmic interferometer uses a distant quasar with two paths to equipment on Earth, one direct and one by gravitational lensing. After [2]. In an attempt to avoid destroying normal ideas of cause and effect, some theoreticians [who?] suggested that information about whether there was or was not a second beam-splitter installed could somehow be transmitted from the end point of the ...