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seen Apr 25 at 12:30

Sep
4
awarded  Yearling
Apr
24
awarded  Enlightened
Apr
24
awarded  Nice Answer
Sep
4
awarded  Yearling
Sep
4
awarded  Yearling
Apr
24
comment Computing a density of states of Hamiltonian $ H=xp$
Shouldn't H be Hermitian? xp is not!
Apr
10
answered The Dual Cloud Chamber Paradox
Feb
21
comment How to find the orbit of a moving point object given 3 past passing positions?
@dmckee: we reduced our problem to finding the ellipse only, regardless to the actual moving body kinematics. Hence - the "time dimension" does not play role here
Feb
21
comment How to find the orbit of a moving point object given 3 past passing positions?
@Qmechanic: corrected, thanks
Feb
21
revised How to find the orbit of a moving point object given 3 past passing positions?
overloaded -> overdetermined
Feb
21
comment Could someone explain to me why this is sometimes right and sometimes not?
@kleingordon: of course. Real-world spring have a so-called "elastic" range
Feb
20
answered Could someone explain to me why this is sometimes right and sometimes not?
Feb
17
answered How to find the orbit of a moving point object given 3 past passing positions?
Feb
8
answered Why is it necessary for an object to have a bigger size than the wavelength of light in order for us to see it?
Feb
1
comment Why do we need 12 atoms to store 1 bit of data?
1 bit of information means that there are two stable states which may be distinguished, into which you may transfer the system, and it'll remain in that state. How are you going to achieve this with 1 atom?
Jan
4
answered Is it true that $\vec{E}\neq 0$ inside a 1- or 2-dimensional conductor?
Dec
4
comment Question on ladder operators
This is a consequence from the fact that a- is the Hermitian conjugate of a+.
Nov
30
comment Quantum Computing, Qubit Creation/Entanglement
Excellent answer!
Nov
16
answered Is the spring constant k changed when you divide a spring into parts?
Nov
15
answered A Paradox in Special Relativity