George Batrouni 
TBA 
TBA 
Eugenio Bianchi 
Loop Quantum Gravity and Spin Foams 
Loop Quantum Gravity is a candidate theory for the quantum
degrees of freedom of the gravitational field. Recently, a
simple covariant description of its dynamics has been
identified (Spin Foams) and contact with classical General
Relativity is now available. I will review the present status
of this research program, highlighting the developments of the
last 3 years, the current open problems, and the possible
phenomenological implications for early cosmology.

Carl Bender 
Latest results on PT quantum theory 
TBA 
Hristu Culetu 
Anisotropic fluid inside a relativistic star 
An anisotropic fluid with variable energy density and
negative pressure is proposed, both outside and inside stars,
on the basis of a recent paper by Grumiller. The gravitational
field is constant everywhere in free space (if we neglect the
local contributions) and its value is of the order of $g =
10^{~8} cm/s^{2}$, in accordance with MOND model. With
$\rho,~ p \propto 1/r$, the acceleration is also constant
inside stars but the value is different from one star to
another and depends on their mass $M$ and radius $R$. In spite
of the fact that the spacetime is of Rindler type and curved
even far from a local mass, the active gravitational energy on
the horizon is $1/4g$, as for the flat Rindler space,
excepting the negative sign.

Herbert Fried 
Construction of a NucleonNucleon Potential from an
Analytic, NonPerturbative, Gaugeinvariant QCD

As the second application of this new approach to QCD, a gluon
"bundle" ( containing an infinite number of gluons, including
cubic and quartic gluon interactions) is exchanged between the
bound gluons of one nucleon and one point on a closed quark
loop; and between another point on that closed quark loop and
the bound quarks of the second nucleon. The potential resulting
from this process strongly resembles, in form and magnitude,
the phenomenological potential long used to describe the
deuteron bound state. Here, analytically, is probably the first
example of Nuclear Physics from basic QCD.

Alex Grossmann 
Fattailed wavefunctions in elementary quantum mechanics

Let us say that a square integrable \psi(x) is fattailed if
x\psi(x) is not square integrable. A class of examples is
given by momentumshifted Levy distributions. By space
shifts and rescalings they produce a counterpart to the well
known coherent state representation. This seems promising for
the description of time evolution of wave packets.

Ralf Hofmann 
Thermal ground state in deconfining SU(2) YangMills thermodynamics

We demonstrate how an inert, adjoint scalar field emerges upon
spatial coarse graining over noninteracting calorons of unit
topological charge. The modulus of this field arises due to
EulerLagrange and BPS consistency which determine its
potential uniquely. Perturbative renormalizability and the
scalar field's inertness uniquely fix the effective action
after coarsegraining, and we solve its equations of motion for
a nonperturbative thermal groundstate estimate. The adjoint
Higgs mechanism generates a thermodynamically consistent mass
for two out of three directions in su(2) provided that a
firstorder evolution equation for the effective gauge coupling
is obeyed. Almost everywhere in temperature the value of the
effective coupling turns out to be such that the action of an
individual (unresolved) caloron takes the value $\hbar$.


Nonperturbative beta function and effective radiative corrections

Appealing to the trace anomaly for the energymomentum tensor,
we compute the nonperturbative beta function for the
fundamental coupling from the results of the effective theory
for deconfining SU(2) YangMills thermodynamics. Except for
nonperturbative screening effects close to the Landau pole the
nonperturbative behavior is similar to the perturbative
evolution. We also sketch the computation of effective
radiative corrections which are organized into a rapidly
convergent loop expansion. Some implications for the physics of
lowtemperature and lowfrequency photon propagation are
pointed out.

Michel Le Bellac 
Why is quantum mechanics so special? 
Bell's inequalities are by now wellknown: Bell wrote down a
quantity S which is bounded by 3 (S<=3) whatever the classical
communication strategy, and which may be larger than 3 in quantum
mechanics, however while obeying the Tsirelson bound S<2+\sqrt{2}.
The fact that S>3 allows us to claim that quantum mechanics is, in some sense,
"nonlocal". The violation of Bell's inequalities is attributed to entanglement, and
it is often claimed that entanglement is the most specific feature of quantum
mechanics. However, there are still some questions left unanswered.
Superficially, the upper bound on S is not Tsirelson's but S<4. It is possible
to write models where 2+\sqrt{2} <= S <= 4 without violating the nosignalling principle,
the impossibility of transmitting information at a speed larger than the speed of light.
What prevents quantum mechanics of not being more nonlocal by violating Tsirelson's bound?
There is another fundamental theorem by Kochen and Specker which excludes non contextual
hidden variables. Is it possible to formulate this theorem in the form of inequalities,
anolog to Bell's inequalities, which are violated by quantum mechanics, without using
entanglement? Thus, is entanglement the fundamental feature of quantum mechanics?
I'll review recent progress made on these two questions.

Pierre Martinetti 
Noncommutative geometry with applications to quantum
physics

We shall give an overview of noncommutative geometry,
emphasizing various approaches, like Connes spectral triple
theory or deformation of Minkowski spacetime. We will
illustrate the applications to physics by examples in quantum
field theory, including the standard model of elementary
particles and quantum gravity. In particular, we will
describe the picture of "quantum spacetime" that emerges
from the metric aspect of noncommutative geometry 
Berndt Muller 
Equilibration and Thermalization of Strongly Coupled Field Theories 
After giving an overview of approaches to the problem of
equilibration of isolated quantum systems, I will discuss
some recent results on holographic thermalization. Using the
AdS/CFT correspondence, we probe the scaledependence of
thermalization in strongly coupled field theories following a
quench, via calculations of 2point functions, Wilson loops
and entanglement entropy in 2, 3, and 4 dimensions. In the
saddlepoint approximation these probes are computed in AdS
space in terms of invariant geometric objects  geodesics,
minimal surfaces and minimal volumes. Our calculations for
two dimensional field theories are analytical. In our
strongly coupled setting, all probes in all dimensions share
certain universal features in their thermalization: (1) a
slight delay in the onset of thermalization, (2) an apparent
nonanalyticity at the endpoint of thermalization, (3)
topdown thermalization where the UV thermalizes first. For
homogeneous initial conditions the entanglement entropy
thermalizes slowest, and sets a time scale for equilibration
that saturates a causality bound over the range of scales
studied. The growth rate of entanglement entropy density is
nearly volumeindependent for small volumes, but slows for
larger volumes.


Physics with Two Timelike Dimensions 
This talk will explore the properties of physical theories
in spacetimes with two time dimensions. I show that the common
arguments used to rule such theories out do not apply if the
dynamics associated with the additional time dimension is
thermal or chaotic and does not permit longlived timelike
excitations. I discuss several possible realizations of such
theories, including holographic representations and the
possibility that quantum dynamics emerges as a consequence of a
second time dimension. 
Frederic Patras 
Multiplicative renormalization revisited 
Multiplicative renormalization addresses
the question of how to change the coupling
constants of a theory in order to perform, for
example, renormalization (cancellation of
divergences) or finite renormalization
(changing the normalization conditions).
The talk will focus on the underlying
combinatorial structures, in relation to
RotaBaxter, Faa di Bruno and other algebraic
identities. Based on joint works with K.
EbrahimiFard. 
Bernard Raffaelli 
Towards a reggeization of Black Holes Physics? From fascination to observation. 
Beyond the purely mathematical definition of a black hole
as a solution of Einstein equations in vacuum, there are
some observational clues, as pointed out by Kip Thorne,
from the first observation of the binary system Cygnus X1
to recent assumptions related to the presence of
hypothetical supermassive black holes in the center of
various galaxies, concerning their existence in our
Universe and, consequently, encouraging their study. But,
what is a black hole? In physics, it is wellknown that in
order to obtain information on interactions between
fundamental particles, atoms, molecules, etc..., and on
the structure of composite objects, we have to make
collision experiments or, more precisely, scattering
experiments. This is exactly the aim of this talk. Indeed,
after defining roughly what a black hole is (and
is not), studying how it can interact with its environment
should allow us to obtain fundamental information about
those invisible weird objects. It should be noted
that this study is also useful to understand the kind of
signals one could detect by the future gravitational waves
astronomy devices and, so to speak, to finally have a way
to observe directly the presence of a black hole in a
given region of our Universe. We will mainly focus on
resonance and absorption phenomena of a scalar field by
(the quite simple example of) the Schwarzschild
black hole. The originality of this study is about the use
of an old semiclassical method known as the complex
angular momentum theory which brings concepts like S
matrix, Regge poles techniques, into high energy black
holes physics, as suggested implicitly by Chandrasekhar in
the middle of the seventies, in order to understand
related properties as the socalled quasinormal modes and
the behavior of the absorption cross section. This
approach allows us to have simple and quite intuitive
physical interpretations of resonance and absorption
phenomena, supported by very accurately novel analytical
expressions within the framework of a field theory.

Jorgen Vitting Andersen 
Finance applied to Physics  Physics applied to Finance 
In the first part of the talk ideas from Finance (rational
expectations theory) will be applied to solve a problem in
Physics: optimal prediction of failure time of a material.
In the second part of the talk ideas from Physics will be
applied to understand formation of speculative financial bubbles
and systemic risks.
