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Researcher in quantum information --- involving algebras over finite dimensional Hilbert spaces, graphs and combinatorics, and vector spaces over ℤ/pℤ.

I habitually edit and re-edit anything I write, as long as I have the time, interest, and ability. I should probably apologize for this tendency, but you will probably have to be satisfied with being warned about it instead.


May
21
revised Eigenvector Grover Operator
improved formatting and English
May
21
answered Eigenvector Grover Operator
May
21
suggested suggested edit on Eigenvector Grover Operator
May
3
answered Qubit projections
Apr
25
comment How much Bicarbonate of Soda and Vinegar would I need to reach space?
I think you're going to run into the "Tyranny of the rocket equation" pretty hard here with a 'fuel' having such little thrust.
Apr
25
answered Question on hadamard gate and cnot gate circuit tables
Apr
11
revised Is it ever necessary to extend an analysis of Grover's algorithm beyond $k/N = 1/2$?
fixed typo
Apr
10
comment Is it ever necessary to extend an analysis of Grover's algorithm beyond $k/N = 1/2$?
@raxacoricofallapatorius: I have revised my answer to better answer your question.
Apr
10
revised Is it ever necessary to extend an analysis of Grover's algorithm beyond $k/N = 1/2$?
revised to clarify
Apr
10
answered Is it ever necessary to extend an analysis of Grover's algorithm beyond $k/N = 1/2$?
Mar
31
comment Von Neumann Entropy: varying definitions
+1. To push the point home: the difference amounts to measuring distances in either meters, or feet. The scalar factor doesn't have any impact on anything that matters, and really just amounts to a choice of units.
Mar
30
answered Application of non maximally entangled state
Mar
30
comment Does quantum computing rely on particular interpretations of quantum mechanics?
These are not interpretations, but rather extensions/variations of quantum mechanics (in that they specify additional details which change the predicted outcome).
Mar
20
comment Quantum gate: Phase shift
Omar: if you note that the magnitudes of $\cos(30^\circ)$ and $\cos(-15^\circ)$ are different from one another, you can see that the only diagonal matrices which could yield the required transformation are ones where the entries have modulus different from $1$. Such matrices aren't unitary, and so in particular they are not valid phase gates. Because the magnitude of the components differ, a more general rotation matrix is required.
Mar
20
revised Quantum gate: Phase shift
LaTeX formatting
Mar
20
suggested suggested edit on Quantum gate: Phase shift
Mar
19
comment How to measure a qubit in a random basis
Right, read too quickly.
Mar
7
comment Help on controlled quantum gates?
Two qubit states are 4x1 (four rows, one column).
Mar
6
comment Help on controlled quantum gates?
Do you have a better idea of what it is that you're looking for, now?
Mar
3
comment Help on controlled quantum gates?
What sort of phase-changing gate are you asking about? Can you give a description for how it would act on standard basis states?