- #1
Joao
- 80
- 8
Hi everyone! Sorry for the bad english!
I'm trying to understand the "delayed choice entanglement swapping" (avaliable in https://arxiv.org/abs/1203.4834 ) and (long story short) , in the article we have pairs of photons that are entangled in the ## \phi \pm ## Bell state and the photons polarization are measured in the Right/Left basis, Vertical/horizontal or plus/minus (I guess it's right handed or left handed circular polarization but I'm not sure).
So, I guess that it means:
In the right and left basis:
If we measure one photon of the pair as Right, the other one will also be measured as Right.
If we measure one photon of the pair as Left, the other one will also be measured as Left.
In the Vertical and Horizontal basis:
If we measure one photon as Vertical, the other one will also be measured as Vertical.
If we measure one photon as Horizontal, the other one will also be measured as horizontal.
In the plus and minus basis:
Now we have a difference in the ## \phi + ## and in the ## \phi - ##
In ## \phi + ##, if we measure + in one photon, we will measure + in the other photon, and if we measure - in one photon, we will measure - in the other photon.
In ##\phi - ##, if we measure + in one photon, we will measure - in the other photon, and if we measure - in one photon, we will measure + in the other photon.
Please, am I right? Thanks!
I'm trying to understand the "delayed choice entanglement swapping" (avaliable in https://arxiv.org/abs/1203.4834 ) and (long story short) , in the article we have pairs of photons that are entangled in the ## \phi \pm ## Bell state and the photons polarization are measured in the Right/Left basis, Vertical/horizontal or plus/minus (I guess it's right handed or left handed circular polarization but I'm not sure).
So, I guess that it means:
In the right and left basis:
If we measure one photon of the pair as Right, the other one will also be measured as Right.
If we measure one photon of the pair as Left, the other one will also be measured as Left.
In the Vertical and Horizontal basis:
If we measure one photon as Vertical, the other one will also be measured as Vertical.
If we measure one photon as Horizontal, the other one will also be measured as horizontal.
In the plus and minus basis:
Now we have a difference in the ## \phi + ## and in the ## \phi - ##
In ## \phi + ##, if we measure + in one photon, we will measure + in the other photon, and if we measure - in one photon, we will measure - in the other photon.
In ##\phi - ##, if we measure + in one photon, we will measure - in the other photon, and if we measure - in one photon, we will measure + in the other photon.
Please, am I right? Thanks!