Linked Questions

2 votes
2 answers
412 views

Hypothetical maximum energy of a single photon [duplicate]

I'm no physicist so it might be a stupid question but is there a maximum energy a single photon can have? My idea was, that there might be restriction for the minimum wavelength and I thought about ...
Kingalione's user avatar
9 votes
1 answer
324 views

Is there any end to the electromagnetic spectrum? [duplicate]

Is there any theoretical end to the electromagnetic spectrum…
POTATO MAN123's user avatar
3 votes
1 answer
73 views

Does a photon have a minimum energy level, below which it disappears? [duplicate]

As photons travel through expanding space they become red shifted, resulting in the CMB. Eventually they will no longer be detectable as they continue to redshift. Is there a point in the distant ...
Intrafinesse's user avatar
1 vote
0 answers
70 views

Upper limit of energy carried by one photon [duplicate]

energy carried by one photon, $E = hυ$ where $υ$ is frequency and $h =$ planck constant. Is there any upper limit to how much energy one photon can carry? or any upper limit of frequency?
gunslinger's user avatar
0 votes
0 answers
34 views

What is the highest possible energy of a photon? [duplicate]

Are following suggestions ok to cap the energy of a photon? When the photons have enough energy in a small enough volume to collapse into a black hole When the wavelength of the photons becomes the ...
Shantanu's user avatar
  • 369
43 votes
5 answers
73k views

What is the highest possible frequency for an EM wave?

What is the highest possible frequency, shortest wavelength, for an electromagnetic wave in free space, and what limits it? Is the answer different for EM waves in other materials or circumstances? ...
Harry Weston's user avatar
7 votes
7 answers
5k views

Can I burn a piece of wood by emitting only one photon per second on it?

Can I burn a piece of wood by emitting single photons on it? (for example by emitting only one photon per second or per milisecond etc to the wood). How much should be the rate of emitting single ...
mathLover's user avatar
  • 376
5 votes
5 answers
1k views

How does non-linear behaviour arise from the inherently linear QM framework?

Quantum mechanics is a linear theory, living in a Hilbert space with built-in linearity. It has even been argued that introducing non-linearity in the quantum theory would allow for superluminal ...
miha priimek's user avatar
3 votes
1 answer
694 views

The cap on massive particles's speed is below the speed of light due to Planck length?

This answer https://worldbuilding.stackexchange.com/a/8525/1991 claims that no particle can accelerate further after its de Broglie wavelength becomes Planck length. Given that speed at this point is ...
Anixx's user avatar
  • 11.3k
0 votes
1 answer
633 views

What does quantum gravity look like at or beyond the Planck scale?

I am reading an article called The fundamental nature of space and time by Gerard 't Hooft. On page 3 he writes the following: Physically, however, the perturbative approach fails. The difficulty is ...
Stan Shunpike's user avatar
0 votes
1 answer
188 views

What is the maximum temperature for a photon?

Assuming that the maximum temperature for particles is $10^{32}$ kelvin (i.e., the Planck temperature) and the electroweak symmetry breaking is below $10^{15}$ kelvin, What is the maximum temperature ...
James Goetz's user avatar
-4 votes
1 answer
104 views

What is the brightest light? [closed]

I have been to wikipedia about intensity of light, and there are at least 20 different ways to classify it. So I guess it boils down to the formula E = hf, which is the energy of a single photon. Now ...
Paul FitzSimons's user avatar