StevieTNZ said:When conducting an experiment with entangled photons, measuring in the +/- basis would mean in the 45/135 basis?
Same. I am just wondering what the basis is also known as. I'm referring to the delayed choice entanglement swapping experiment from 2012. They denote polarization, when a bell-state measurement occurred, as |+> and |->DrChinese said:I don't think I've seen that notation before (45/135 associated with +/-).
Polarization basis refers to the orientation of the electric field of a photon. It can be described by the angle of the electric field relative to a reference direction, such as horizontal or vertical.
In the context of entangled photons, polarization basis is measured using a polarizing beam splitter, which separates the photons based on their polarization orientation. This allows for the measurement of the photons' polarization states.
Measuring entangled photons in 45/135 polarization basis allows for the detection of quantum entanglement between the photons. This means that the polarization states of the photons are correlated, even when they are physically separated from each other.
This type of measurement is useful for various applications in quantum information and communication technologies. It can be used for secure communication, quantum teleportation, and quantum cryptography.
The main limitation is the difficulty in creating and maintaining entangled photon pairs. This process is challenging and requires precise control and manipulation of photons. Additionally, the measurement process can be affected by external factors such as noise and decoherence, which can decrease the accuracy of the results.