Is it possible to switch the porosity of any microporous material by external stimuli (eg. optical, pressure or electrical ). I'm trying to imagine something akin to an "Artificial Stomata" where the pore opening & closing Can be externally controlled.
I'd be very thankful if someone could...
a) if it is, what kinds of tests will help demonstrate that ?
b) not all sequences generated are pseudorandom. Those generated by nuclear decay or similar quantum effects can be considered to be truly random.
I wish to understand something about randomness and Pseudorandomness. In particular, given a set of "seemingly-random" numbers, what can one do to analyse as to whether they are randomly generated numbers or just a pseudorandom sequence.
Can somebody point me to Good, pedagogical Referances in...
I have been contemplating for a few days now about how one could think about the electronic structure of Liquid metals. The cases of an isolated atom or that of solid metal crystal are well known and easy to understand. Though, a google search reveals (to me) that nothing much has come out for...
Really sorry for that wrong piece of terminology. Yes, I indeed was referring to Reflection/Transmission Problem. Could you elaborate on the consideration of αa>>1 ? Does it come about when boundary conditions are applied ??
Tunneling from Rectangular barrier - Exponential Decay ??
Consider the Rectangular Potential Barrier. If one solves bound state Problem in this case, wavefunctions of Exponentially Decaying and rising kind are found for the Region in the Barrier.
ψ = A eαx + B e-αx
Yet Most Books and...
Bragg diffraction - How to make sense of it ??
Is there a way to make sense of Diffraction of X Rays without taking recourse to oversimplified concepts like "Reflection of X Rays by parallel planes" which is generally the explanation in most basic physics books. It's been a couple years since I...
I just found this weird observation in Ragestache Comics. Anybody care to explain to me why one can Retain the troll face even after sometime ?? (Eg. I could Retain the figure in my mind for more than 4.5 mins ).http://cdn.ragestache.com/2012/1/23/ragestache.com_30398_1329012006.jpg BTW, could...
Actually If I can come up with some illustrative ideas, and talk to them, I think they can tell me the type of apparatus available.
could you get me an idea from few of those so that I may talk to Respective faculty members.
See, Simply put , stationary states of 1-d box are those in which the probability density (and also expectation values) are independent of time. do this : construct the time dependent wavefunction by stacking exponential time dependence alongside the sines. check out the probablity density. in...
Hello,
I am a final Year undergrad in B.Sc in Electronics. I am going to apply for a Summer Research (2months period )in Lasers in other institutions and I am thinking to work on Laser Cooling. I have to specify a short, innovative project idea.
I have gone through courses in Quantum...