# De Broglie–Bohm theory - Wikipedia

In his later career, de Broglie worked to develop a explanation of wave mechanics, in opposition to the wholly models which dominate theory. Today, thisexplanation is known as the , since itwas refined by in the 1950s.

## This is what is called as de Broglie hypothesis

### De Broglie waves - The Free Dictionary

At first glance one might expect a length-time wave to have energy associated with it, just like an electromagnetic wave. However, from the preceding arguments it follows that a length-time wave **oscillates between negative and positive energy states of the vacuum**, but averages out to **zero energy**, assuming equal magnitude departures in the opposing energy states. Thus a length-time wave has zero **net** energy. This accords with Louis de Broglie's assertion, in his 1923 note, that matter waves, of themselves, **cannot** involve the transport of energy from place to place. [ ]

### Related to de Broglie waves: De Broglie ..

By specifying "on average" the supposition is that the quantum vacuum, in proximity to fundamental particles, is populated by numerous length-time 'photons', whose **mean** wavelength corresponds to the particle's de Broglie wavelength. Collectively, these 'photons' would thus form the equivalent of a "wave packet", which would **modulate** the behavior of the particle **as perceived by external observers**. In essence what would otherwise be classical trajectories for fundamental particles, would be radically modified by a particle's wave packet - consisting of a cloud of length-time quanta in the particle's immediate neighborhood. Being that these length-time 'photons', are assumed to possess a mass in the supersymmetry regime, the range of their length and time wave components would be restricted to less than 10^{} meters. This would explain **the spatial confinement** of the wavepacket, associated with fundamental particles, as it evolves in time. Alternatively, essentially the same result would be obtained by assuming fundamental particles are not perfectly 'locked' at the cross-over node, but oscillate symmetrically to either side of it. That would dispense with the need for a 'packet' of length-time quanta in a particle's vicinity.

## a few years later confirmed de Broglie's hypothesis

**Some dates**

He supposed matter could have a double nature and behave at the same way of light.

He formulated the "DeBroglie Hypothesis"**1927**

DeBroglie's formula was confirmed.**1929**

He awarded Nobel Prize for "DeBroglie Hypothesis", a revolutionary theory that supports particles such as electrons could display wave like-properties.

1938

He got the Max Planck medal.

De Broglie's equation

APPLICATION IN REAL LIFE**The experiment**

Conclusions

The Davisson-Germer experiment demonstrated the wave nature of the electron, confirming the earlier hypothesis of De Broglie.

Unlike the Bragg law, this was the first application to particle waves.

Today, De Broglie physics is applied in lasers, computers, and

microscopes.

Vocabulary

VACUUM CHAMBER:

Description

MOVABLE DETECTOR

: rilevatore mobile

ELECTRON BEAM:

fascio di elettroni

But De Broglie didn't have any experimental proof at the time

of his proposal.