presentación de powerpoint - unamgioc.fisica.unam.mx/ws2015/hm1.pdf · applications of quantum...
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Applications of Quantum Mechanics
Analogías clásico-cuánticas en
Arreglos de guías de onda
Héctor Manuel Moya-Cessa
[email protected] Nacional de Astrofísica,
Optica y Electrónica
Tonantzintla, Pue.
Mexico
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Applications of Quantum Mechanics
Grupo:
Dr. Arturo Zuniga Segundo (IPN)
Estudiantes de maestría y doctorado
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Applications of Quantum Mechanics
Resumen:
•Motivación
•Notación de Dirac
•Préstamo de estructuras de cuántica a clásica
(Gerd Leuchs: Classical entanglement: Oxymoron or resource)
•Ejemplos
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Applications of Quantum Mechanics
Other lectures:
2. Special functions
3. Quantum mechanical invariants
4. Optical realization of a quantum Kerr medium
5. Wigner function
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Application
s of
Quantum
Mechanics
From Physics &
Probability,
Grandy Jr. &
Milonni, eds.
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Application
s of
Quantum
Mechanics
p.87
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Applications of Quantum Mechanics
Notación de Dirac
0, 1, 2, 3,
1 0 0 0
0 1 0 0ˆ ˆ ˆ ˆ| 0 |1 | 2 | 3
0 0 1 0
0 0 0 1
r r r r
ˆ| 0 0 T
jj j r
ˆ ˆ| T
j k jkj k r r
3 3
0 0
ˆ | |n n n
n n
x c r x c n
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Applications of Quantum Mechanics
01 0 1
2 2
, 1
0 0
0 1 0 0
0 0 0 0ˆ ˆ| 0 1|
0 0 0 0
0 0 0 0
0 1 0 0
0 0 1 0| 1|
0 0 0 1
0 0 0 0
T
j j
j j
V r r
V j j
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Bessel states as nonlinearcoherent states
Applications of Quantum Mechanics
Infinite waveguides array
1 1 0j
z j j
dEik E E
dz
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A beam injected
into one of the
waveguides in the
array spreads to the
rest of them by
wave coupling.
Discrete Diffraction
Applications of Quantum Mechanics
This phenomenon has been referred to as DISCRETE
DIFFRACTION
( ) ( ) 2j
j j zE z i J k z
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Applications of Quantum Mechanics
†
,
| 1|,
| 1 |,
|
n
n
n m
V n n
V n n
n m
†|( ) | ,
| |
z
j
j
d Ei k V V E
dZ
E E j
Schrödinger-like equation
1 1 0j
z j j
dEik E E
dz
01 0 1
2 2
, 1
0 0
0 1 0 0
0 0 0 0ˆ ˆ| 0 1|
0 0 0 0
0 0 0 0
0 1 0 0
0 0 1 0| 1|
0 0 0 1
0 0 0 0
T
j j
j j
V r r
V j j
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Applications of Quantum Mechanics
†
†
( )
1( )
|( ) | ,
| | (0)
|
(2 ) |
| | (2 ) |
z
z
z
ik V V z
k iV ziV
n n
n z
n
n
n z
n
d Ei k V V E
dz
E e E
e m
i J k V m
j E j i J k m n
†
,
1 †
| 1|,
| 1 |,
|
n
n
n m
V n n
V n n
n m
V V
( ) ( ) 2j
j j zE z i J k z
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Applications of Quantum Mechanics
Caminatas aleatorias cuánticas
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Applications of Quantum Mechanics
010 E
Zd
Edi 01 11 nn
n EnEndZ
Edi
†|( ) | 0
d Ei a a E
dZ
Arreglo tipo Glauber/Fock
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Applications of Quantum Mechanics
)0(exp)( aaiZz )(ZmEm
kaZiaZimZEm )exp()(exp)2/exp( 2
1],[ aa
1( ) ( )
| | 1
n na x n x
a n n n
1( ) 1 ( ),
| 1 | 1
n na x n x
a n n n
Ver Arfken: Capítulo Hermite
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Applications of Quantum Mechanics
)()!(
!)()2/(exp)( 22 ZL
sk
kZiZZE s
k
s
sk
)(
!
)!()()2/exp()( 22 ZL
k
skZiZZE s
sk
s
sk
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Applications of Quantum Mechanics
f(n)
A. Perez-Leija, H. MOYA-CESSA, F. Soto-Eguibar, O. Aguilar-Loreto, A.
Szameit, and D.N. Christodoulides, Opt. Commun. 284, No. 7, 1833-1836
(2011). “CLASSICAL ANALOGS TO QUANTUM NONLINEAR
COHERENT STATES IN PHOTONIC LATTICES.”
† † †1 1ˆ ˆ ˆ( 1) , ( 1),A f n a A a f n n a a
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su(1,1)
Applications of Quantum Mechanics
†02 lncoshtan tan| ( ) | (0)
A Zi ZA i ZAz e e e
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Applications of Quantum Mechanics
A. Zúñiga-Segundo, B.M. Rodríguez-Lara, D.J.
Fernández and H.M. MOYA-CESSA,
Optics Express (2013)
Jacobi photonic lattices and their SUSY partners
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Optical realization of light matterinteraction
†0
† 0
†0
ˆ ( )2
ˆ(2
(
)
ˆ )( )2
z
n g a a
g a
g a
a
n
n
H a
Applications of Quantum Mechanics
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Application
s of
Quantum
Mechanics
Atom-field interaction detuning=0 Ion-laser interaction
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Application
s of
Quantum
Mechanics
Eigenestados
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Application
s of
Quantum
Mechanics
ˆ ˆ
ˆ ˆ
( 1) 1 ( 1) 11
2 ( 1) 1 1 ( 1)
n n
n nT
†0
† 0
†0
ˆ ( )2
ˆ(2
(
)
ˆ )( )2
z
n g a a
g a
g a
a
n
n
H a
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Application
s of
Quantum
Mechanics
ˆ †0
†
ˆ †0
ˆ ( 1) ( ) 02
ˆ0 ( 1) ( )2
n
T
n
n g a a
H THT
n g a a
( , ) ( , )| 2 0 0 | 2
| (0) , | (0) ,0 | 2 | 2 0
e e e g
T T
n nT T
n n
( , ) ( , )| 2 1 | 2 1 0 0
| (0) , | (0) .0 0 | 2 1 | 2 1
o e o g
T T
n nT T
n n
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Application
s of
Quantum
Mechanics
ˆ †0ˆ ( 1) ( )2
n
eH n g a a
.
0 0
0 1
0
1 1
0,2
( 1) 1 0, 12
nn
n n n
dEi E gE
dZ
dEi n E g n E g nE n
dZ
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Applications of Quantum Mechanics
Paraxial wave equation
Suponemos ahora dos medios GRIN pegados
GRaded INdex referring to an optical material
with refractive index in the form of a parabolic curve,
decreasing from the center towards the cladding.
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Applications of Quantum Mechanics
Optical realization of a quantum beam splitter
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Applications of Quantum Mechanics
Splitting in a 50:50 beam splitter
R.A. Campos, B.E.A. Saleh, and M. C. Teich, Phys. Rev. A 40, 1371 (1989).
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Applications of Quantum Mechanics
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Applications of Quantum Mechanics
Paraxial wave equation
Consider the copropagation of two beams, probe and signal, in a
Kerr medium. The probe beam produces the index of refraction
If the probe beam has a Gaussian profile,
Is astigmatic and slightly tilted,a term xy is produced
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Applications of Quantum Mechanics
1 1 2 0 0 2( ) ( ) ( ) ( ) ( ) ( )u x u y u x u y u x u y
† †, , , ,2 2
q q
q q q q q
q ip q ipa a n a a q x y
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Applications of Quantum Mechanics
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Applications of Quantum Mechanics
Tomado de: http://www.idquantique.com
Quantis uses Quantum Physics to create truly-random numbers
Existing randomness sources can be grouped in two classes: software
solutions, which can only generate pseudo-random bit streams, and
physical sources. In the latter, most random generators rely on classical
physics to produce what looks like a random stream of bits. In reality,
determinism is hidden behind complexity.
Contrary to classical physics, quantum physics is fundamentally
random. It is the only theory within the fabric of modern physics
that integrates randomness. Quantis uses this property to generate
random numbers from quantum origin
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Applications of Quantum Mechanics
Conclusiones:
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Applications of Quantum Mechanics
References:
1. H.S Eisenberg et al, PRL 81, 3383 (1998).
2. A. L. Jones, JOSA 55, 261-271 (1965).
3. HMC, F. Soto-Eguibar, Differential Equations: An Operational
Approach, RINTON PRESS, New Jersey, 2011. ISBN 1-58949-060-
4
4. R. Keil, A. Perez-Leija, F. Dreisow, M. Heinrich, HMC, S. Nolte, D.
N. Christodoulides, and A. Szameit, Phys. Rev. Lett. (2011)
“DISPLACED FOCK STATES AND QUANTUM
CORRELATIONS IN GLAUBER-FOCK PHOTONIC
LATTICES”
5. HMC, F. Soto-Eguibar, J.M. Vargas Martínez, R Juárez-Amaro and A.
Zúñiga-Segundo Physics Reports 513, 229 (2012).
6. R. Mar-Sarao and HMC, Optics Letters 33, No. 17, 1966-1968 (2008),
“OPTICAL REALIZATION OF A QUANTUM BEAM
SPLITTER.”
7. A. Perez-Leija, HMC and D.N. Christodoulides, Physica Sripta T 147,
014023 (2012).