00:00 - 23:0023:00 - 00:00
45
Q: Do photons truly exist in a physical sense or are they just a useful concept like $i = \sqrt{-1}$?
Here's a silly idea : take the action of a free particle,
$$S = \int_{t_1}^{t_2} \dot{x}^2 dt$$
Our configuration space is the space of $C^1$ functions over $[t_1, t_2]$, which is spanned by the Fourier series
$$x^a(t) = \sum c^a_n e^{i\frac{2\pi n t}{T}}$$
So that every path is represented ...
-1
In the original setup, a laser generates individual photons, 351.1nm, that passes through a double slit.
After the slits, there is Spontenaeous parametric downconversion of the photon into two photons of 702.2nm. It prepares an entangled two photons state. This converts the photon into two ident...
In mathematics, the Volterra integral equations are a special type of integral equations. They are divided into two groups referred to as the first and the second kind.
A linear Volterra equation of the first kind is
f
(
t
)
=
∫
a
t
K
(
t
,
s
)
x
(
s
)
d
s
{\displaystyle f(t)=\int _{a}^{t}K(t,s)\,x(s)\,ds}
where ƒ is...
00:00 - 23:0023:00 - 00:00
