Can measure time without clock

French scientists have recently discovered a way to measure the delay of time while photovoltaic emission without the use of a clock (a very small fraction of time). This helps open up many prospects for developing advanced technologies in the future.

According to Digital Journal, currently, scientists at the University. École polytechnique fédérale de Lausanne, Switzerland is very interested in many different approaches to help track time, especially the method of measuring a physical phenomenon called "Optical radiation". This phenomenon describes what will be released when a beam of light hits certain materials, and then the electrons are emitted to the outside. This effect is also applied as a background research of laser technology.

Optical radiation effect is applied as a fundamental research of laser technology.

And that is also what French researchers are interested in. They performed a successful calculation of the delay of one billionth of a billionth of a second (1.0 × 10 ^ -18 seconds) when optical radiation occurred.

French scientists have successfully carried out that study by measuring electrons emitted from a copper crystal. It is interesting that this measurement is completely independent of normal time measurements. They just need to measure the spins of the emitted electrons without the need for super-short laser pulses.

According to Wikipedia, spin is a physical quantity, has the nature of angular momentum and is a pure quantum concept, there is no correspondence in classical mechanics.

Optical radiation is the basis of today's advanced spectroscopic techniques.

Optical radiation is the basis of today's advanced spectroscopic techniques. Therefore, the research method of scientists will be easily applied to the study of the properties of electrons in a solid surface, especially understanding the magnetic properties of a number of different materials and bringing them to prospects for developing more efficient and convenient medical and consumer electronic devices.

Meanwhile, capturing time delay measurements in attoseconds (the shortest time cycle can be measured in 1 second) and the difference between the series of materials will provide a good benchmark. most to develop various kinds of electronic switches .

The above research by French scientists has been published in the recent Physical Review magazine.