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

15/02/2016 · What is the significance of de Broglie's equation

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.

In addition to strictly scientific work, de Broglie thought andwrote about the , includingthe value of modern scientific discoveries.

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.

Louis-Victor-Pierre-Raymond , 7th duc de Broglie, (,  – , ) was a   who discovered that  have two natures similar to both  and waves.

confirming the earlier hypothesis of De Broglie

At first glance it would not seem possible for the electron and proton de Broglie wavelengths to match as the proton is 1836 times the mass of the electron. For a fundamental particle: λ = /, where λ is the wavelength associated with a particle, is the particles momentum, and is Planck's constant. However, , which is momentum, is the product of mass x velocity. Since the electron and proton are moving around their combined system center-of-mass, and that center is close to, or inside, the proton, there is a reciprocal trade-off. The mass of the proton is much larger than the electron's but its mean velocity is proportionally smaller, so their de Broglie wavelengths are the same.

2 Answers - Why did Louis de Broglie win the Nobel prize?

Why did Louis de Broglie win the Nobel prize

De Broglie had originally intended a career in , and receivedhis first degree in .Afterwards, though, he turned his attention toward mathematics andphysics. With the outbreak of the in 1914, he offered hisservices to the army in the development of communications.

duality or the de Broglie hypothesis

De broglies hypothesis by Belkis Killian - issuu

De Broglie became a member of the in 1933, and was theacademy's perpetual secretary from 1942. On 12 October 1944, he waselected to the , replacingmathematician . Because of the deaths andimprisonments of Académie members during the occupation and othereffects of the war, the Académie was unable to meet the quorum oftwenty members for his election; due to the exceptionalcircumstances, however, his unanimous election by the seventeenmembers present was accepted. In an event unique in the of the Académie, he wasreceived as a member by his own brother Maurice, who had beenelected in 1934. awarded him the first in 1952 for his work inpopularizing scientific knowledge, and he was elected a Fellow ofthe on 23 April 1953. In 1961 he received the title ofKnight of the Grand Cross in the . De Broglie wasawarded a post as counselor to the French High Commission of AtomicEnergy in 1945 for his efforts to bring industry and science closertogether. He established a center for applied mechanics at the , where research into optics, cybernetics, and atomicenergy were carried out. He inspired the formation of the and was an earlymember.