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Optical computing or photonic computing uses light waves produced by lasers or incoherent sources for data processing, data storage or data communication for computing.For decades, photons have shown promise to enable a higher bandwidth than the electrons used in conventional computers (see optical fibers).
A photon (from Ancient Greek φῶς, φωτός (phôs, phōtós) ' light ') is an elementary particle that is a quantum of the electromagnetic field, including electromagnetic radiation such as light and radio waves, and the force carrier for the electromagnetic force.
An optical quantum computer with three qubits calculates the energy spectrum of molecular hydrogen to high precision. [172] The first germanium laser advances the state of optical computers. [173] A single-electron qubit is developed [174] The quantum state in a macroscopic object is reported. [175] A new quantum computer cooling method is ...
The word 'Photonics' is derived from the Greek word "phos" meaning light (which has genitive case "photos" and in compound words the root "photo-" is used); it appeared in the late 1960s to describe a research field whose goal was to use light to perform functions that traditionally fell within the typical domain of electronics, such as telecommunications, information processing, etc ...
The photon having non-zero linear momentum, one could imagine that it has a non-vanishing rest mass m 0, which is its mass at zero speed. However, we will now show that this is not the case: m 0 = 0. Since the photon propagates with the speed of light, special relativity is called for. The relativistic expressions for energy and momentum ...
The early writers discussed here treated vision more as a geometrical than as a physical, physiological, or psychological problem. The first known author of a treatise on geometrical optics was the geometer Euclid (c. 325 BC–265 BC).
CEO of Verizon Media Guru Gowrappan speaks onstage during The 2020 MAKERS Conference at the InterContinental Los Angeles Downtown in February 2020.
Another, earlier model which relies on the representation of several qubits by a single photon is based on the work of C. Adami and N. J. Cerf. [1] By using both the location and the polarization of photons, a single photon in this model can represent several qubits; however, as a result, CNOT-gate can only be implemented between the two qubits ...