- #1
San K
- 911
- 1
Understanding energy transfer during the creation of entanglement
Below is an attempt to understand the energy transfer process during entanglement, please correct where required.
Broadly/conceptually speaking:
There are two kinds of 'energies’ associated with a photon.
1. The photon itself is 1 quanta of energy
2. The energy in the form of momentum (frequency, velocity etc)
During entanglement via SPDC
1. The photon is made to strike a crystal
2. Sometimes (about less than 1 in a billion strikes) two photons emerge from the crystal. The combined momentum of the two photons is equal to the momentum of the original photon. These photons are entangled.
(However in case of carom/billiards...the two balls that emerge...have combined momentum less than that of the original striker...the transfer of energy is not friction-less. Some energy is lost to the table, air molecules, etc)
3. The transfer of energy is friction-less i.e. the original photon transfers all of its momentum to the two (entangled) photons that emerge from the crystal (once in a, say, billion times)
Below is an attempt to understand the energy transfer process during entanglement, please correct where required.
Broadly/conceptually speaking:
There are two kinds of 'energies’ associated with a photon.
1. The photon itself is 1 quanta of energy
2. The energy in the form of momentum (frequency, velocity etc)
During entanglement via SPDC
1. The photon is made to strike a crystal
2. Sometimes (about less than 1 in a billion strikes) two photons emerge from the crystal. The combined momentum of the two photons is equal to the momentum of the original photon. These photons are entangled.
(However in case of carom/billiards...the two balls that emerge...have combined momentum less than that of the original striker...the transfer of energy is not friction-less. Some energy is lost to the table, air molecules, etc)
3. The transfer of energy is friction-less i.e. the original photon transfers all of its momentum to the two (entangled) photons that emerge from the crystal (once in a, say, billion times)
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