BORING
PRESENTATION
FOR 2 REASONS.
AN
EXCELLENT
V 4.0
BORING
PRESENTATION
FOR 2 REASONS. I GUESS SO.
AN
EXCELLENT
#1
too many equations. text. garbage.
BORING
BECAUSE
storytelling.
EXCELLENT
BECAUSE
#2
random blah blah. bad storytelling.
BORING
BECAUSE
to be bored.
GET READY
ISHTIAQUE ZICO / BANGLADESH
RIGHT!
THAT’S
MY NAME
ISHTIAQUE ZICO / BANGLADESH
AND
MY
COUNTRY
ISHTIAQUE ZICO / BANGLADESH
MY BIO
INDEPENDENT
FILMMAKER
WRITER. ALSO.
I LOVE IDEAS,
EXPERIMENT &
LIMITATION
twitter.com/iazico
& ENJOY
WORKING WITH
RUPANTOR
MICROCINEMA TEAM
BUT ONCE
I STUDIED
MATHEMATICS
UNDERGRAD. BORING.
I HAD TO MAKE
PRESENTATION WITH
MATHEMATICS
THAT’S WHY BORING
AND THIS
PRESENTATION DEALS
SCATTERING THEORY
ALSO SCARING
SO LET’S EXPLORE
INVERSE SCATTERING &
SCATTERING BLAH BLAH
YOU ARE WARNED.
deflection of subatomic particles
& WHAT IS SCATTERING
subatomic particles
& WHAT IS
[search]
subatomic particles
GOOGLE. PLEASE.
I would do the same thing.
ALWAYS.
SCATTERING. EXAMPLE.
Wave scattering
Sunlight scattered by rain drops
SCATTERING. EXAMPLE.
Particle scattering
The motion of billiard balls
SCATTERING. EXAMPLE.
Particle scattering
The motion of billiard balls
SCATTERING. EXAMPLE.
Particle scattering
The motion of billiard balls
To make your
presentation boring,
never insert photo.
like me.
TIPS #1
To make your
presentation boring,
never insert photo.
use clipart.
TIPS #1
Direct Scattering Problem
Spectrum
Scatterer
use
symbol. jargon. whenever you can.
AND TIPS #2
INPUT : Potential
OUTPUT : Spectrum
CONSIDER :
0))(( xuxx
Potential
(t=0)
Eigenvalue Eigenfunction
Direct Scattering Problem
Sturm-Liouville equation
INPUT : blah
OUTPUT : BLAH
CONSIDER :
Blah
(t=0)
Eigen blah Eigen blah
Direct Scattering Problem
Ha Ha Ha…
SOMETHING WAS HERE
INPUT : blah
OUTPUT : BLAH
CONSIDER :
Blah
(t=0)
Eigen blah Eigen blah
Direct Scattering Problem
Ha Ha Ha…
blah BLAH
Direct Scattering Problem
Spectrum Types
spectrum
discrete
= negative
= blah blah
continuous
= positive
= again blah
},{
Direct Scattering Problem
Graph : When Discrete
-6 -5 -4 -3 -2 -1
0.2
0.4
0.6
0.8
1
eigenfunction decays exponentially
Direct Scattering Problem
And when continuous
Transmitted
u
v
IncidentReflected
TIPS #3
use 1980s style graph!
HA HA HA…
Direct Scattering Problem
Example | Direc Delta*
* distribution, not function.
)()( 0 xUxu
0,0
0,)(
x
xx
Next.
ENOUGH.
Scatterer
Spectrum
Inverse Scattering Problem
BLAH blah
INPUT : Spectrum
OUTPUT : Potential
Inverse Scattering Problem
Just the inverse
and vice versa.
INPUT BECOMES OUTPUT.
not yet?
you will be.
BORED?
Inverse Scattering Problem
Our Goal
0)( 2 ukxx
0)( uxx
2k
The solution is assumed to be:
MAGIC
Inverse Scattering Problem
Our Boredom
x
ikzikx dzezxKekx ),();(
0))((ˆ
2
x
ikz
zzxx
ikx dzeKxuKKdx
Kdue
From Cauchy’s theorem we get:
MAGIC. AGAIN.
Inverse Scattering Problem
Sorry
0)ˆ(
dzee ikzikx
BC
Input particle energy = variable
Impact parameter = constant
BORED?
Inverse Scattering Problem
One More
0)(),()(),(
xdyzyFzxKzxFzxK
U(x,0) S(0)
S(t)U(x,t)
Scattering
Inverse Scattering
KdVTime
Inverse Scattering Problem
Almost Done
STEPHEN HAWKING SAID,
IN BRIEF HISTORY OF TIME
every equation
helps to lose the readers by half.
STEPHEN HAWKING SAID,
every equation
helps to lose the readers by half.
SOMETHING LIKE THIS.
how many equations
I have used here?
HA HA HA…
you there?
OOPS.
anybody?
HELLO.
forget everything I said.
SORRY.
of boredom.
THE END
NOW
BLAME ME OR
GOOGLE ME OR
AND
THANK ME
FOR BORING YOU.
ALSO
THANK YOURSELF
FOR YOUR PATIENCE.
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