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seen Nov 30 '13 at 21:02

Oct
26
comment How is a qubit realized in a cavity?
A single photon in a cavity is a specific physical state, namely the "1" eigenvector of the number operator $a^\dagger a$. Also harmonic oscillators make terrible qubits by themselves. Usually you couple them to an anharmonic or approximately 2-level system as in the Jaynes-Cummings model described by Vasek below.
Apr
27
comment Why are do neutral atoms shrink as their valence shells approach 8 electrons?
I'm not sure I understand all of the relevant factors in computing atomic radii, but this table of theoretical values seems to contradict yours.
Apr
27
answered Rotational kinetic energy during vertical circular motion of a particle
Jan
16
answered How to “read” the temperature of an abstract system?
Dec
30
answered Can conservation of energy be applied if trajectory is not smooth?
Nov
30
awarded  Supporter
Jul
20
awarded  Teacher
Jul
19
answered How Does a Quantum Computer Work?