Entanglement and identical particles

In summary, the total wavefunction of identical particles in atoms, such as electrons, is antisymmetric when their states are swapped, suggesting entanglement. However, this does not fulfill the conditions for entanglement as the quantum wavefunctions of the two electrons can still be separated.
  • #1
relativityfan
75
0
hello,

can we say that identical particles in atoms like electrons are entangled since their total wavefunction is antisymmetric when we swap the states?

is there any condition for this entanglement?
 
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  • #2
relativityfan said:
hello,

can we say that identical particles in atoms like electrons are entangled since their total wavefunction is antisymmetric when we swap the states?

is there any condition for this entanglement?

Two electrons in an atom are not "identical" in the sense that I think you mean, and no, this doesn't satisfy conditions for entanglement.
 
  • #3
You can clearly separate the quantum wavefunctions of the two electrons, they are therefor not "entangled".
 

1. What is entanglement?

Entanglement is a phenomenon in quantum mechanics where two or more particles become connected in such a way that the state of one particle is dependent on the state of the other, even when they are physically separated. This connection is maintained even if the particles are on opposite ends of the universe.

2. How do particles become entangled?

Particles can become entangled through interactions with each other, such as colliding or being in close proximity. This entanglement occurs at the quantum level and is not observable in classical physics.

3. What is the significance of entanglement?

Entanglement plays a crucial role in quantum computing and communication, as it allows for the transfer of information between particles without the need for a physical connection. It also challenges our understanding of the fundamental principles of physics and has potential applications in fields such as cryptography and teleportation.

4. How is entanglement related to identical particles?

In quantum mechanics, identical particles, such as electrons or photons, are indistinguishable from one another. This means that their properties, such as spin or charge, cannot be used to tell them apart. When identical particles become entangled, they share a single quantum state, even if they are separated, making it impossible to determine which particle is which.

5. Is entanglement instantaneous?

According to quantum mechanics, entanglement occurs instantaneously, regardless of the distance between the particles. This has been demonstrated in experiments where entangled particles separated by vast distances showed synchronized behavior, confirming that the connection between them is not affected by time or space.

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