This video was sponsored by Screen Australia and Google Australia through the SkipAhead Initiative.
Thank you Kathy for the beautiful animations! https://kathysarpi.com

Part 2:    • What can my homemade quantum computer...  

If you want to do this experiment at home, you can! It's very simple.
All you'll need is:
- a weak red laser pointer (the type in cat toys are generally safe)
- polarizing film or polarizing filter. If you have polaroid glasses or certain camera ND filters you may already have this. Otherwise it's available on amazon
- half waveplate (the plastic thing) is this one: https://www.edmundoptics.co.uk/f/poly... (λ/2 Retarder Film (WP280))
- You don't need calcite, but if you want to play with it, you can find it on etsy usually. Look for a sample that's exceptionally clear