# String Theory: The de Broglie Hypothesis

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. [ ]

## De Broglie Wavelength Hypothesis Overview - ThoughtCo

### De-Broglie hypothesis and De-Broglie equation | …

The de Broglie hypothesis states that particles of matter also had wavelengths and could behave as waves, just as photons did. String theory will later say that both types of particles — matter and energy — are manifestations of vibrating strings, but that’s about 50 years down the road from de Broglie’s time. He proposed his theory in 1923.

### Debroglie hypothesis | Brilliant Math & Science Wiki

Here was de Broglie’s line of reasoning for the bold new theory. Under special relativity, matter and energy were different manifestations of the same thing. The photon, a particle of energy, had a wavelength associated with it. Therefore, particles of matter, such as electrons, should also have wavelengths. His PhD dissertation set out to calculate what that wavelength (and other wave properties) should be.

## De broglie hypothesis ppt by Belkis Killian - issuu

French physicist Louis de Broglie proposed this hypothesis. It was a ground breaking hypothesis in fact. Earlier Louis de Broglie was a student of history, later he built his career in physics. He proposed this famous theory in his PhD thesis in 1924 (some people think the year was 1923).

### String Theory: The de Broglie Hypothesis - dummies

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.

### [physics/0303033] Louis De Broglie's experiment - arXiv

If you explore the wavelength values for ordinary macroscopic objects like baseballs, you will find that their DeBroglie wavelengths are ridiculously small. Comparison of the power of ten for the wavelength will show what the wavelengths of ordinary objects are much smaller than a nucleus. The implication is that for ordinary objects, you will never see any evidence of their wave nature, and they can be considered to be particles for all practical purposes.

### The de Broglie–Bohm theory, also known as the ..

Louis de Broglie extended this property to every particle including electron, proton, neutron, atom and molecule. This theory is even applicable for matter. He proposed, wave is associated to every moving particles and matter. According to de Broglie hypothesis electron is not only particle, it also have wave property. Later his hypothesis was verified experimentally by Davisson and Germer.