entropia nÃo aditiva, mecÂnica estatÍstica...
TRANSCRIPT
Constantino TsallisCentro Brasileiro
de Pesquisas
Físicas
e Instituto
Nacional
de Ciência
e Tecnologia
de Sistemas
Complexos
Rio de Janeiro
e
Santa Fe Institute, New Mexico, USA
EconoRio, Rio de Janeiro, Novembro
2010
ENTROPIA NÃO ADITIVA, MECÂNICA ESTATÍSTICA NÃO EXTENSIVA,
E ECONOFÍSICA:
VALORES EXTREMOS EM FINANÇAS
THERMODYNAMICS
MECHANICS (classical, quantum, relativistic ... )
LANGEVIN EQUATION
FOKKER-PLANCK EQUATION
STATISTICAL MECHANICSLIOUVILLE EQUATION
VON NEUMANN EQUATION
VLASOV EQUATION
BOLTZMANN KINETIC EQUATION
BBGKY HIERARCHY
Brau
n an
d H
epp
theo
rem
MASTER EQUATION
H theorem
N
THEORY OF PROBABILITIES
ENTROPY FUNCTIONALENERGY
ENTROPIC FORMS
Concave
Extensive
Lesche-stable
Finite entropy production per unit time
Pesin-like identity (with largest entropy production)
Composable
Topsoe-factorizable
BG entropy
(q =1)
Entropy Sq(q real)
POSTULATE FOR THE ENTROPIC FUNCTIONAL
nonadditive (if 1)q
additive
1
1
1ln ( 0)1
ln ln
( ) :
,
:
q
qDEFINITION q logarithm
Hence the entropies can be rewritten
equa
xx xq
x
l probabili
x
W
i=1
W
i=1
( 1)
1 l
( )
n ln
1 ln ln
ii
q i qqi
ties generic probabilities
k pk Wp
k W
BG entropyq
entropy S
q R
k pp
TYPICAL SIMPLE SYSTEMS: Short-range space-time correlations
Markovian processes (short memory), Additive noise
Strong chaos (positive maximal Lyapunov exponent), Ergodic, Euclidean geometry
Short-range many-body interactions, weakly quantum-entangled subsystems
Linear/homogeneous Fokker-Planck equations, Gausssians
Boltzmann-Gibbs entropy (additive)
Exponential dependences (Boltzmann-Gibbs weight, ...)
TYPICAL COMPLEX SYSTEMS:Long-range space-time correlations
Non-Markovian processes (long memory), Additive and multiplicative noises
Weak chaos (zero maximal Lyapunov exponent), Nonergodic, Multifractal geometry
Long-range many-body interactions, strongly quantum-entangled sybsystems
Nonlinear/inhomogeneous Fokker-Planck equations, q-Gaussians
Entropy Sq (nonadditive)
q-exponential dependences (asymptotic power-laws)
e.g., ( ) ( 1)NW N
e.g., ( ) ( 0)W N N
- Additive versus Extensive
- Central Limit Theorem
- Predictions, verifications and applications
ADDITIVITY:
additive probabilistically independent
( ) ( )Therefo
An entropy is if, for any two systems an
( )
re
( ) ( ) ( ) (1, since
d ,
q q q
S A B S A S B
S A B S A
A B
S B
and ( ) are additive, an
) ( )
d
( 1) is nonadditiv
(
,
e .
)Renyi
BG q q
q q
S S q S
q S A S B
q
EXTENSIVITY:
1 2
1 2 Consider a system made of (not necessarily independent) identical elements or subsystems and , ..., . An en
...
extensive
trop
y is
0 l
m
i
i
f
N
N
N
NA A A
A A A
( ) , . ., ( ) ( ) S N i e S N N NN
Foundations of Statistical Mechanics: A Deductive Treatment (Pergamon, Oxford, 1970), page 167
O. Penrose,
SPIN ½
XY FERROMAGNET WITH TRANSVERSE MAGNETIC FIELD:
| | 1 0 | | 1
0
Ising ferromagnetanisotropic XY ferromagnetisotropic XY ferrom
transverse magnetic fieldL length of a block within
ag
a N cha
n t
in
e
F. Caruso and C. T., Phys Rev E 78, 021101 (2008)
F. Caruso and C. T., Phys Rev E 78, 021101 (2008)
2
. . , 06002 (2004)
9 3
,
,
ent
Using a Quantum Field Theory resultin P Calabrese and J Cardy JSTAT Pwe obtain at the critical transverse magnetic field
with c
cqc
cent
1 2
37 6 0.08
1
28
10 3 0.1623
ent
ent
Ising and anisotropic XY ferromagnets c
Isotropic XY ferr
in conformal f
omagnet c
ral char ield theoryge
q
q
Hence
and
F. Caruso and C. T., Phys Rev E 78, 021101 (2008)
29 3cqc
1.67 1.671 1ln (2 1)
qc S
(d = 1; T = 0)
(pure magnet with critical transverse field)
(random magnet with no field)
BG
Summarizing, for a wide class of quantum systems or subsystems with elements, we know that
ln ln for 1 quantum chains
for 2
(
boson
)BG
N
L N N d
L N
S N
N d
2 2/3
1 ( 1)/
ic systems for 3 for -dimensional bosonic systems
black
holed d d
L N N dL N N d
1
2
area law1 ln ( 1) (NONEXTENSIVE!)
1
( 1; )
For the same class of quantum systems, we expe
c
t
dd
d
enq
L L L Nd
d
d
S
(EXTENSIVE!( ) ( 1; 1)
(analytically and/or computationally shown for 1
)
,2)
dentt
N L N d q
d
F. Caruso and C. T., Phys Rev E 78, 021101 (2008)
SYSTEMS ENTROPY SBG
(additive)ENTROPY Sq (q<1)
(nonadditive)
Short-range interactions,weakly entangled blocks, etc
EXTENSIVE NONEXTENSIVE
Long-range interactions (QSS),strongly entangled blocks, etc
NONEXTENSIVE EXTENSIVE
quarks-gluons, plasma, curved space ...?
- Additive versus Extensive
- Central Limit Theorem
- Predictions, verifications and applications
D. Prato and C. T., Phys Rev E 60, 2398 (1999)
q-GAUSSIANS:2
2( / )1-1
1( ) ( 3)1 ( -1) ( / )
qx
p x qq x
e
q -
GENERALIZED CENTRAL LIMIT THEOREM:
S. Umarov, C.T. and S. Steinberg, Milan J Math 76, 307 (2008)
1[ ( )]
[ ]( ) ( ) = ( )
-Fourier trans
( )
1
form:
ix ix f xq q q q
qF f f x dx f x dx
q
q
e e
(nonline ar!)
For q<1
see K.P. Nelson and S. Umarov, Physica A 389, 2157 (2010)
1/(2 )2( ) [ ( )]( , ) (1 2)2
q
qqf y F f x y y d q
1 1( ) [ ( )]( , ) [ ( )]( ) 2 2
i yf y F f x y y d F f x de
Particular case q = 1:
ON THE INVERSE q-FOURIER TRANSFORM:
M. Jauregui and C. T. (2010)
3/2-Gaussian
M. Jauregui and C. T. (2010)
Hilhorst function
1/( 2)( 2)/( 1)
1/( 1) 2( 1)/( 2)1/( 1) ( 2)/( 1)
( 2)/( 1)
| |
| | 1 ( 1) | |
( ) if 0 | | 0
qq q
qq qq q qq
q qA
x A
C x q x A
f x A x
( 2)/( 1) if 0 | |
with ( ) 1
q q
A
x A
dx f x
0 2 1/( 1)
Particular case: 01 ( )
[1 ( 1) ] qq
A
f xC q x
Hilhorst function (q=5/4; A=1)
M. Jauregui and C. T. (2010)
1 [ ]q independent 1 ( . ., 2 1 1) [ ]q i e Q q globally correlated
1
( ) ( )
(
Classic CL
)
,
T
with same ofx Gaussian G x
f x
<
( 2)Q
(0 2)
Q
1/[ (2- )]
CENTRAL LIMIT THEOREM
-
-
( )
( )
q scaled attractor when summing N independent identical random variables
with symmetric distribut
x
ion w
N q
f x
21
1 [ ( )] / [ ( )] 2 1, 3
Q QQ
qith dx x f x dx f x Q q qq
2
1
| |
( )
L
evy
| | (1, )
L ( )( ) / | |
| |
(
(
-Gned
1, ) lim (
enk
) ( )
o CLT 1 )
,
,
c
c
c
with same x behavior
G xif x x
xf x C x
if x xwith x
x Levy distribution L x
1 11
1
3 / 1
2/( 1)
( )
( ) | | ( , 2)
( ) / | | | | ( , 2)
( ) ,
lim
( )
( ) ( )
c
c
q
q q
c
q
Q
q
q
q
with same of f x
G x if x x q
f x C x if x x q
with
x
x
G x
G x G x
S. Umarov, C. T. and S. Steinberg, Milan J Math 76, 307 (2008)
( , 2)
q
2 1 3* 2 (1 )
2 1
,
1,
2 1 3,
,2 3, 21
,(1 )/(1 )
| |
( ) / | |
( ) ,
( ~
( ) / | |
)
L
q qq
q qq q
q
q
x L
intermediate regime
with same x asymptotic behavior
G x C x
L
G x C x
S. U m arov, C . T ., M . G ell-M ann and S. SteinbergJ M ath Phys 51, 0335
02
(2010)
( )
distant regime
- Additive versus Extensive
- Central Limit Theorem
- Predictions, verifications and applications
LASER COOLING:
21
1
(0)( )
1 ( 1)q
TT xxq
Devoe, Phys Rev Lett
102
(2009) 063001
SPIN RELAXATION IN SPIN GLASSES (NEUTRON SPIN ECHO):
Pickup, Cywinski, Pappas, Farago, Fouquet, Phys Rev Lett
102
(2009) 097202
SPIN RELAXATION IN SPIN GLASSES (NEUTRON SPIN ECHO):
21
11
1( ) 12
1
1 ( 1)
1 2
rel
rel
rel
q
q ttq
tq
Pickup, Cywinski, Pappas, Farago, Fouquet, Phys Rev Lett
102
(2009) 097202
hence2 2=1+ 1 2( 1) 1 2( 1)ret retsize sizeq q q q
A. Celikoglu, U. Tirnakli and S.M.D. Queiros, Phys Rev E 82, 021124 (2010)
Gutenberg-Richter- like law
avalanche size avalanche return
0 0
. .,
1) New representation of Dir
( ) ( ) ( )
Question: For what cla
ac delta:
2
ss
( )
of functions ( ) is this so?
(1 2)2
ikxq
i e
dx x
qx
x f x f x
f x
dk qe
M. Jauregui and C. T., J Math Phys 51, 063304 (2010)
q-PLANE WAVES:
M. Jauregui and C. T. (2010)
( ) | | (| | ; )f x A x x R
A. Chevreuil, A. Plastino and C. Vignat J Math Phys 51, 093502 (2010)
standard Dirac delta
max1 1q
2) New representation of :
M. Jauregui and C. T., J Math Phys 51, 063304 (2010)
Archimedes
(c. 287 BC – c. 212 BC)
2 22
2
2
2( ) satisfies
3) -plane waves ar
with
( ) (cos sin ) with | ( ) | 1
1( 1
e square integrable (
) 1
3| | 2(
0 3):( , ) ( , ) ( , )
q qi xq
i kx tq
q qx t x tc
x N N x i x dx x
q
q
ckt x
qN
x t
e
e
1 2
1)q
M. Jauregui and C. T., J Math Phys 51, 063304 (2010)
q=1.1q=1
22
2
0 0
(quantum non-relativistic spinless free particle)4) generalized Schroedinger equation
, ,1
is giv
( )2
e by
2
n
Its exact soluti
on
q
q
x t x ti i c q R
t q m
x
0 0
2
. .
with
,
(Newtonian re
2
lation !)
k x ti p x Etq q
q
it
pEm
e e
F.D. Nobre, M.A. Rego-Monteiro and C. T. (2010)
2( 1)2 2 2
22 2 2
0
(quantum relativistic spinless free particle: e.g.5) -generalized Klein-Gordon equation:
, ,1, ,
, mesons )
is giv
( )
Its exact solution
q
q
x t x tm cx t q x t q Rc t
0 0
2 2 2 2 4
. .
en by
with (Ei
Particular c
nstein relat
0 -plane waves
,
ion
a
s
!
)
e:
k x ti p x Et
q qi
x t
E p c m c q
m q
e e
F.D. Nobre, M.A. Rego-Monteiro and C. T. (2010)
(quantum relativistic spin 1 2 matter and anti-matter free particles:
5) -generalized Dirac equation:
e.g., electron and positro
n)
q
i
2 ( )
1
( ) (1)
with
(4 4
,. , , , ( )
0 1 0 matrice ;
0 -1 0
,
s
, ,
)
q
q
jqi j ij i j ij
j
x ti c x t mc A x t x t q R
t
x tA x t A x t
a
(4 4 matrix)
where are complex consta
nt
.
sja
F.D. Nobre, M.A. Rego-Monteiro and C. T. (2010)
11 1
2 2 2
3 33
4 44
1
2
3
4
. .
is given by
with
,
,
,
, ,
Its exact solutio
n
k x ti p x Etq q
x ta a
x t ia ax t
a ax ta a
x t
aaaa
e e
2 2 2 2 4 (Einstein relation
(
being the same
hence !) )
q
E p c m c q R
F.D. Nobre, M.A. Rego-Monteiro and C. T. (2010)
LHC (Large
Hadron
Collider)CMS (Compact
Muon
Solenoid) detector
~ 2500 scientists/engineers
from
183 institutions
of
38 countries
q=1.15 T=0.145
PHENIX @ RHIC
1.10q
1.10q
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