Comment by westurner

/? How can fractional quantum hall effect be used for quantum computing https://www.google.com/search?q=How+can+a+fractional+quantum...

> Non-Abelian Anyons, Majorana Fermions are their own anti particles, Topologically protected entanglement

> In some FQHE states, quasiparticles exhibit non-Abelian statistics, meaning that the order in which they are braided affects the final quantum state. This property can be used to perform universal quantum computation

Anyon > Abelian, Non Abelian Anyons, Toffoli (CCNOT gate) https://en.wikipedia.org/wiki/Anyon#Abelian_anyons

Hopefully there's a classical analogue of a quantum delete operation that cools the computer.

There's no resistance for electrons in superconductors, so there's far less waste heat. But - other than recent advances with rhombohedral trilayer graphene and pentalayer graphene (which isn't really "graphene") - superconductivity requires super-chilling which is too expensive and inefficient.

Photons are not subject to the Landauer limit and are faster than electrons.

In the Standard Model of particle physics, Photons are Bosons, and Electrons are Leptons are Fermions.

Electrons behave like fluids in superconductors.

Photons behave like fluids in superfluids (Bose-Einstein condensates) which are more common in space.

And now they're saying there's a particle that only has mass when moving in certain directions; a semi-Dirac fermion: https://en.wikipedia.org/wiki/Semi-Dirac_fermion

> Because of this, within two decades, nearly all digital compute will need to be reversible.

Reversible computing: https://en.wikipedia.org/wiki/Reversible_computing

Reverse computation: https://en.wikipedia.org/wiki/Reverse_computation

Time crystals demonstrate retrocausality.

Is Hawking radiation from a black hole or from all things reversible?

What are the possible efficiency gains?