RU189686U1 - DEVICE FOR RESEARCH OF EFFECT "QUANTUM LASTIK" - Google Patents

Abstract

The claimed technical solution relates to the section of devices for controlling the physical parameters of light and demonstrating its properties, including the effect of "Quantum Eraser" on the example of the phenomenon of quantum information erasure. Device for the study of the effect of "Quantum Eraser" includes a rigid platform on which the laser, the scattering lens and the telescope are consistently located. Two translucent plates, one hundred percent mirror, a translucent plate and a screen are placed along the beam path, and a polarizer, a translucent plate, a polarizer and a screen are placed perpendicular to the beam path after the translucent plate. At the same time, after a translucent plate, a translucent plate, an absolute mirror, a translucent plate and a screen are placed perpendicular to the beam, and a polarizer, a translucent plate and a screen are placed perpendicular to the beam after the translucent plate. The technical result is the convenience and simplicity of the layout of the demonstration model for observing quantum information erasure, which ensures the speed, convenience and safety of experiments. 1il

Description

Technical field

The claimed technical solution relates to the section of devices for controlling the physical parameters of light and demonstrating its properties, including the effect of "Quantum Eraser" on the example of the phenomenon of quantum information erasure.

The level of technology

From the current level of technology known electro-optical modulator according to the scheme of the Mach-Zehnder interferometer (RU patent No. 2405179 dated 11/27/2010. Author (s): Drevko D.R., Zyryukin Yu.A.). This device allows you to control the intensity, color, phase, polarization or direction of light, but does not allow to observe quantum erasure of information.

Disclosure of utility model

The task, the solution of which the claimed technical solution is aimed at, is to create a convenient and visual device that allows demonstrating optical and quantum phenomena, in particular, the effect of "Quantum Eraser".

This problem is solved due to the fact that an internal circuit consisting of translucent plates and a system of polarizers is added to the device, structurally similar to the described analogue, which ensures the manifestation of quantum information erasure, as well as adjustment devices that allow you to directly adjust the optical elements.

The result that is provided by the above set of features is the convenience and simplicity of the layout of the demonstration model for observing quantum information erasure, which ensures the speed, convenience and safety of the experiments.

Implementation of the utility model

FIG. 1 shows a device for the study of the effect of "Quantum Eraser", which includes a rigid platform on which the laser 1, the scattering lens 6 and the telescope 7 are sequentially located; further along the course of the beam are placed a translucent plate 2.0, a translucent plate 2.1, an absolute mirror 3.1, a translucent plate 2.4 and a screen 5.4; perpendicular to the path of the beam after the translucent plate 2.1 are placed polarizer 4.1, translucent plate 2.3, polarizer 4.3 and screen 5.1; at the same time, after the translucent plate 2.0, a translucent plate 2.2, an absolute mirror 3.2, a translucent plate 2.4 and a screen 5.3 are placed perpendicular to the beam path; and after the translucent plate 2.2, a polarizer 4.2, a translucent plate 2.3 and a screen 5.2 are placed perpendicular to the beam.

The device works as follows: laser 1 directs the light beam to the scattering lens 6 and further to the telescope 7, thereby increasing the light spot. Then the beam passes through the semitransparent plate 2.0, is divided into two beams, orthogonal to each other due to the fact that part of the light passes through the plate, the part is reflected from it. Then each of them on its way passes through the semitransparent plates 2.1 and 2.2, which again share the light rays and together with the polarizers 4.1, 4.2, 4.3, the semitransparent plate 2.3 and the screens 5.1 and 5.2 close the inner loop. In this case, an interference pattern is observed on the screens of the internal contour. The rays of the external contour that have passed through the semitransparent mirrors 2.1 and 2.2 are reflected on the absolute mirrors 3.1 and 3.2, are reduced using the semitransparent mirror 2.4 and fall on the screens 5.3 and 5.4, on which the interference pattern is also observed.

With the help of this device, the principle of photon interference with itself is explained by the example of beam interference, since information about the path the particle has passed (path 1 or 2 in the drawing) is erased, since its passage along these paths is equally probable.

The advantage of the proposed device is the visibility, convenience and ease of obtaining the interference pattern, as well as studying the effect of "Quantum Eraser" in the form of erasing information about the photon's path and its restoration, which can be used in laboratory studies of optical phenomena and the principles of quantum mechanics.

Claims (1)

Device for the study of the effect of "Quantum Eraser", characterized by the fact that it includes a rigid platform on which the laser, the scattering lens and the telescope are sequentially located; along the course of the beam there are two translucent plates, one hundred percent mirror, a translucent plate and a screen; and perpendicular to the course of the beam after the translucent plate are placed a polarizer, a translucent plate, a polarizer and a screen; at the same time, after the translucent plate, a translucent plate, an absolute mirror, a translucent plate and a screen are placed perpendicular to the beam path; and after the translucent plate, a polarizer, a translucent plate and a screen are placed perpendicular to the beam.

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