network profile
| bio | website | |
|---|---|---|
| location | ||
| age | ||
| visits | member for | 1 year, 8 months |
| seen | Aug 11 '12 at 11:33 | |
| stats | profile views | 41 |
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Sep 4 |
awarded | Yearling |
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Apr 24 |
comment |
Computing a density of states of Hamiltonian $ H=xp$ Shouldn't H be Hermitian? xp is not! |
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Apr 10 |
answered | The Dual Cloud Chamber Paradox |
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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 |
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Feb 21 |
comment |
How to find the orbit of a moving point object given 3 past passing positions? @Qmechanic: corrected, thanks |
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Feb 21 |
revised |
How to find the orbit of a moving point object given 3 past passing positions? overloaded -> overdetermined |
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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 |
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Feb 20 |
answered | Could someone explain to me why this is sometimes right and sometimes not? |
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Feb 17 |
answered | How to find the orbit of a moving point object given 3 past passing positions? |
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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? |
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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? |
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Jan 4 |
answered | Is it true that $\vec{E}\neq 0$ inside a 1- or 2-dimensional conductor? |
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Dec 4 |
comment |
Question on ladder operators This is a consequence from the fact that a- is the Hermitian conjugate of a+. |
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Nov 30 |
comment |
Quantum Computing, Qubit Creation/Entanglement Excellent answer! |
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Nov 19 |
comment |
How to become very good at physics? Study 1st degree in the university, then you'll probably figure out... |
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Nov 16 |
answered | Is the spring constant k changed when you divide a spring into parts? |
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Nov 15 |
answered | A Paradox in Special Relativity |
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Nov 14 |
answered | canonical and microcanonical ensemble |
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Oct 31 |
comment |
Are specific heat and thermal conductivity related? At room temperatures in metals electrons contribute almost nothing to the specific heat. Typical Fermi temperature is about 40K Kelvin. Means - thermal excitations are almost negligible. |
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Oct 31 |
answered | How do Optically Active Compounds Rotate Plane Polarized Light? |
