Co-relation between interference and polarization

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Discussion Overview

The discussion revolves around the relationship between interference and polarization in the context of the double slit experiment, specifically examining how different polarization states of photons affect the formation of interference patterns. It explores both theoretical implications and experimental setups.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • Some participants propose that if two photons of different polarization (left and right) are sent through a double slit, there will be a degree of destructive interference, resulting in a distorted interference pattern.
  • Others argue that if both photons are of the same polarization, an interference pattern will form without distortion.
  • A later reply questions whether modifying the double slit experiment by placing a polarizer before the slits would yield a different interference pattern compared to not using a polarizer, suggesting that an interference pattern should be observed in both cases.

Areas of Agreement / Disagreement

Participants express differing views on how polarization affects interference patterns, with some asserting that different polarizations lead to distortion while others maintain that same polarizations yield clear patterns. The discussion remains unresolved regarding the impact of polarizers on the interference pattern.

Contextual Notes

The discussion does not clarify the assumptions regarding the nature of the photons or the specific configurations of the polarizers used, leaving some aspects open to interpretation.

San K
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Let's say we send two photons at same time through double slit:

Would interference pattern form if:

1. Both the photons are of different polarization? (i.e. one left polarized and the other right)
2. Both the photons are of same polarization?
 
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San K said:
Let's say we send two photons at same time through double slit:

Would interference pattern form if:

1. Both the photons are of different polarization? (i.e. one left polarized and the other right)
2. Both the photons are of same polarization?

1. There will be a degree of destructive interference, so a distorted pattern would emerge.
2. Yes.
 
DrChinese said:
1. There will be a degree of destructive interference, so a distorted pattern would emerge.
2. Yes.

thanks Dr Chinese.

now if we modify the double slit experiment (one photon at a time) as below:

1. we place a polarizer before the slits
2. we don't place a polarizer (i.e. simply the "classic" double slit, single photon at a time experiment)

Would the interference pattern between 1 and 2 look different?
 
San K said:
thanks Dr Chinese.

now if we modify the double slit experiment (one photon at a time) as below:

1. we place a polarizer before the slits
2. we don't place a polarizer (i.e. simply the "classic" double slit, single photon at a time experiment)

Would the interference pattern between 1 and 2 look different?

Should get an interference pattern in both cases.
 

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