The celebrated KPZ equation (Kardar, Parisi, Zhang, 1986) is an
important milestone in statistical physics, originally introduced to describe
the late time dynamics in various growth models. Over the last 30 years, the
KPZ story has evolved in various interesting directions, making links on the
way to different areas of ...
The early 1960s witnessed a wealth of elementary particles described
in terms of simple combinations of a few more elementary units, dubbed quarks.
The known mesons and baryons could all be described as states of quark-
antiquark or three quarks. However, it was not understood why certain more
elaborate combinations ...
Recent work has made it clear that gravity is an example of an
emergent phenomenon: there exists a large number of strongly interacting,
microscopic degrees of freedom and gravity is merely an approximate long-
distance description of these degrees of freedom. The situation is somewhat
analogous to thermodynamics, which is ...
I will discuss the possibility that the nature of the dark energy driving the
observed acceleration of the Universe on giga-parsec scales may be determined
first through metre scale laboratory based atom interferometry experiments. I
will begin by introducing the scalar fields that could be responsible for dark
energy and ...
Adopting methods familiar from non-equilibrium quantum field
theory, we have developed a microscopic, non-equilibrium field theory for
cosmic structure formation. The theory begins with the initial phase-space
distribution of a correlated ensemble of classical particles undergoing
Hamiltonian dynamics. This phase-space distribution defines a generating
functional resembling the partition function familiar ...
I will discuss a number of novel features of hadron physics
predicted by quantum chromodynamics (QCD), including supersymmetric relations
between mesons, baryons, and tetraquarks; unexpected heavy quark phenomena;
as well as a new approach to quark confinement and the structure of hadrons.
I will present a critical appraisal of the singularity theorems in
general relativity and other geometric theories of gravity. In particular, I
will review the history, key developments, and importance of the theorems and
their physical conclusions. Time permitting, new or recent advances will be
discussed, including a discussion on ...
Advanced LIGO event GW150914 has been attributed to the coalescence of two
black holes with masses more than double that of most known stellar black
holes. Formation of such stellar black holes directly through supernova
explosions requires massive, metal-deficient progenitors. This requirement and
their nearly equal masses may not be ...
The possibility that the quantum state of the present Universe is not a stable
one is investigated, in the light of recent particle physics observations, in
particular the discovery of the Higgs boson. The physics behind the decay
mechanism of an unstable ground state is discussed in some detail. The ...
Galactic morphology is driven by angular momentum acquisition
through anisotropic secondary infall, coming from larger scales, which are
less dense, hence more steady. Cold flows provide the link and leave a clear
signature in terms of spin alignment. Galaxies are first aligned and then
perpendicular to their host filaments. This ...
Reconnection is a fundamental event in many area of science,
including interaction of fluid vortices and flux tubes in fluid mechanics and
magnetohydrodynamics, and site-specific recombination in DNA. This talk will
discuss the mathematical similarities between reconnection events in biology
and physics, and the relationship between iterated reconnection and curve ...
This talk recalls the generation of mass in the Standard Model by illustrating
the mechanism of electroweak symmetry via the Higgs field. It then reviews the
history of the discovery of the Higgs boson in the first run of the LHC and
summarises the current status of measurements of its ...
New Physics searches at the LHC are mostly being performed with the aim of
detecting new states. A complementary strategy is to look for new
interactions, something that typically involves precise measurements. In this
talk I argue how many of the current SM (and BSM) measurements in the top
One hundred years after Einstein formulated General Relativity,
the pivotal role of its most fundamental and fascinating objects --- the black
holes --- is nowadays recognized in many areas of physics, even beyond
astrophysics and cosmology. Still, solving the theory that governs their
dynamics remains a formidable challenge that demands innovative ideas ...
The top quark, discovered 20 years ago, is now copiously produced at
the CERN Large Hadron Collider, which allows detailed studies and
interpretations of its properties. It remains the heaviest elementary particle
ever found. Its strong interaction properties are those of any other quark,
but its large coupling to the ...