119 reputation
7
bio website github.com/sw1sh
location Moscow, Russia
age
visits member for 2 years, 1 month
seen Nov 10 at 11:03

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You Should Do The Matasano Crypto Challenges. I did and they are awesome.


Oct
21
accepted Grassmann number representation for fermions
Oct
13
revised Grassmann number representation for fermions
added 454 characters in body
Oct
13
comment Grassmann number representation for fermions
@Qmechanic Hatted c's are operators, and other c's are two Grassmann numbers.
Oct
13
comment Grassmann number representation for fermions
@ACuriousMind Yes, I saw these, these matrices don't satisfy all relations.
Oct
13
asked Grassmann number representation for fermions
Sep
24
awarded  Autobiographer
Oct
19
comment The virial theorem and a delta function potential
I'm not sure, but if you want a derivative of delta-function, you need to integrate your virial theorem over the space also. Then using integration by part the right hand side will be equal $-D V_0$.
May
28
awarded  Scholar
May
28
accepted What's gonna happen if a nuclear bomb explodes nearby?
May
28
accepted Correlated three-particle Green Function
May
28
accepted Matrix representation for fermionic annihilation operator
May
28
asked What's gonna happen if a nuclear bomb explodes nearby?
May
3
revised Correlated three-particle Green Function
added 132 characters in body
May
3
revised Correlated three-particle Green Function
added 132 characters in body
May
3
revised Correlated three-particle Green Function
added 21 characters in body
May
3
comment Correlated three-particle Green Function
@Slaviks It's annihilation-creation operator pairs, so there is just two of them.
Apr
29
comment Matrix representation for fermionic annihilation operator
So I should change my states to |n>*|spin> in order to make proper operators?
Apr
28
revised Matrix representation for fermionic annihilation operator
deleted 1 characters in body
Apr
28
comment Matrix representation for fermionic annihilation operator
@PeterKravchuk I hope now it's more clear.
Apr
28
revised Matrix representation for fermionic annihilation operator
added 553 characters in body