eigenket

61 ms·

691.
by eigenket 6y ago
That was exactly my point. The guy was saying people shouldn't correct an "incorrect" thing which is in common usage, but I was trying to emphasise that it isn't common usage everywhere.
692.
by eigenket 6y ago
I have a pet theory - in north america you have a popular snack called an eggo (pluralised to eggos) thats basically a waffle. I think americans started calling lego legos because they were already calling eggos eggos. In the uk and europe
693.
by eigenket 6y ago
Yeah I was just surprised by the assertion that >"Legos" is clearly in common usage Given that I don't ever hear people using it. Personally I get faintly annoyed by people saying "legos" the same as I would by p
694.
by eigenket 6y ago
Where are you from? In Britain I'm pretty sure I've never heard anyone say "Legos", it sounds very American to me.
695.
by eigenket 6y ago
It can be written as a spin chain, there is a Hamiltonian that generates the unitary you wrote above. Maybe it isn't very natural to do so but I also don't really that its natural to call this thing a "qantum walk" (like
696.
by eigenket 6y ago
Yeah thats pretty much what I thought, I would call this object a spin-chain rather than a quantum walk though. I guess it might have some "walkey" characteristics if you whack the right Hamiltonian on it though.
697.
by eigenket 6y ago
This seems completely different to the sorts of walks I'm used to. When you say "qubit of an integer register" what are you actually talking about here? Do you have a qubit for each integer like a spin chain or something? The
698.
by eigenket 6y ago
If there is no additional degree of freedom the walk has to be trivial (assuming homogeneity).
699.
by eigenket 6y ago
I don't understand this comment at all. Let me clarify my point slightly. The quantum walk is a unitary operator acting on a Hilbert space H consisting of two parts H_spin and H_space H = H_spin ⊗ H_space In this example H_spin is just
700.
by eigenket 6y ago
IBM also have stuff for this based on the qiskit project. I don't know anything about the software interface for the amazon thing at all but I think IBM's quantum computers are generally considered better than the Rigetti ones tha
701.
by eigenket 6y ago
I think thats fine, you just need the spin (what gets calls the "coin") degree of freedom states to be orthogonal for the bit that came from the left and the bit that came from the right. A quantum walk with a unitary like U = sum
702.
by eigenket 6y ago
A lot of nice stuff goes "wrong", or at least different in characteristic 2. Perhaps the most interesting possibility remaining is that the unit conjecture is true for fields of characteristic != 2 but false for 2?
703.
by eigenket 6y ago
Yeah, humans haven't really changed very much biologically in the last 100000 years or so. Its often easy to think that advanced problem solving abilities are relatively modern, but theres not really any reason to think you or I are sm
704.
by eigenket 6y ago
Personally I thought it was rather sad that it ignored completely the massive contribution made by the Polish Cipher Bureau and particularly Marian Rejewski. In 1939 the Poles basically dumped an absolutely massive amount of information the
705.
by eigenket 6y ago
The UK has a decently high number of Jehovas Witnesses who (based on the stuff on leaflets they've put through my door) definitely don't seem to follow mainstream science on evolution.
706.
by eigenket 6y ago
The Ordnance Survey in the UK won £20 million from another map maker (AA) by showing that AA maps contain "fingerprints" the OS includes in its maps. According to the OS these tend not to be significant mistakes but small changes
707.
by eigenket 6y ago
People have been making qubits in the form of nitrogen vacancy (NV) centers in diamonds for quite a long time. See, for example this https://arxiv.org/abs/quant-ph/0510152 from 2005. No idea what these Canberra pe
708.
by eigenket 6y ago
To some extent this already exists http://www.vanityindex.com/
709.
by eigenket 6y ago
60 million to 30 thousand is a rounding error, there are 1.5 billion cattle in the world.
710.
by eigenket 6y ago
Yeah, and we even have a word for the "something else" that you're describing - its a rainforest.
711.
by eigenket 6y ago
This point relies on the assumption that the cattle are out eating grass (or other plants) which would naturally be growing and rotting without human intervention. This is kinda not true. Grazing systems supply about 9 percent of the world&
712.
by eigenket 6y ago
City of London is kinda weird as its the only place in the UK that companies can vote (as far as I'm aware). its got like 10k actual humans voting there and like 24k votes from companies.
713.
by eigenket 6y ago
I would agree with the statement: > At the end of the day it's people who are more easily misinformed, who do not question, do not look elsewhere, are not skeptical about how content is making them feel What is your reasoning for de
714.
by eigenket 6y ago
I kinda agree with this, one thing I'd add is that what is "intuitive" is what matches our intuition, honed over millions of years to...survive wild animal attacks, throw spears accurately and not fall out of trees. There isn
715.
by eigenket 6y ago
Ok, I think your definition of "field" is different to mine. Mine starts "A field is a set F with binary operations + and x" and then goes on to list some properties they have to have, yours seems to be doing something d
716.
by eigenket 6y ago
There is not one Dedekind-complete ordered field, for every two Dedekind-complete ordered fields there is a unique isomorphism between them. For example the nxn diagonal matrices with real entries with all the entries along the diagonal equ
717.
by eigenket 6y ago
Na, I'm not - I'm explaining how to "compute: \pi*\pi using repeated addition". Step 1 - find a convenient Cauchy sequence that converges to \pi.
718.
by eigenket 6y ago
I think its easy to get too hung up on particular definitions, you're free to define the reals to be the isomophism class of Dedekind-complete ordered fields if you like, I'm free to define the reals by some construction (Cauchy s
719.
by eigenket 6y ago
You can get algorithmic explicit constructions of (for example) integer addition, rational addition and multiplication and even addition and multiplication of algebraic numbers on a Turing machine (all algebraic numbers are computable). All
720.
by eigenket 6y ago
This comment seems to have been cut off before the end?

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