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I'm a mathematical physicist in training working primarily on questions concerning quantum information and general quantum mechanics.


22h
reviewed Reopen Are the particle-wave duality and the quantum uncertainty principle united?
22h
reviewed Looks OK How can I physically interpret voltage and current?
2d
reviewed Looks OK Engravings in “Wandering the Immeasurable” sculpture outside the CERN globe?
2d
reviewed Approve Can Tension between two blocks on a horizontal plane be discovered in these conditions?
Mar
27
reviewed Leave Closed Physics speed-time graph of a lift
Mar
27
reviewed Edit Why is the sky of the moon always dark?
Mar
27
revised Why is the sky of the moon always dark?
added relevant tags
Mar
26
reviewed Approve Period of small oscillations of rotational disk
Mar
26
reviewed Leave Open Air nozzle outlet profile efficiency, concave/convex
Mar
26
reviewed Close Which technique is used to measure huge astronomical distances which are in terms of billions of light years?
Mar
26
reviewed Close How to visualize the world while travelling near the speed of light?
Mar
26
reviewed Leave Open What is the particle residence time for given flow rates of gas mixture components?
Mar
26
reviewed Leave Open Kirchoffs voltage law
Mar
26
reviewed Leave Open Units consistency
Mar
26
reviewed Reviewed How does anything move?
Mar
26
reviewed Reviewed Is getting the ground state of Edwards-Anderson model NP hard?
Mar
26
reviewed Approve Where can I find a table for NIST standards on temperature and pressure?
Mar
26
reviewed Close Do all the emitted electron in photoelectric effect have same K.E
Mar
26
comment Is the quantum NOT operation similar to the classical NOT operation?
I wasn't overly concerned with the classical NOT, I'm just saying that I don't think this is an appropriate characterization for quantum gates. Honestly, I find your definition of "NOT" confusing. Your QNOT is basically defined on qubits. Hence it should correspond to the classical NOT, which is a simple boolean function on bits: $NOT:\{0,1\}\to \{0,1\}$ defined the obvious way. It seems to me that you want to have a look at the logical NOT - but the QNOT is not equivalent to a logical NOT, also because quantum theory is not really based on boolean logic...
Mar
26
answered Do non-Gaussian states always show negativity in phase space?