
Itzhak Bars
Department of
Physics and Astronomy

Research Interests
My current interests include Cosmology
and Black Holes , TwoTime Physics
(2TPhysics) and String Field Theory (SFT). My longterm
goal is the construction of the unified theory at the fundamental level.
My research is driven by some of the current questions in Cosmology, the Standard Model of elementary particles, and unification of forces including quantum gravity in the framework of string theory or Mtheory. The mysteries that are hoped to be resolved include the physics of the very early universe and how it determined the gauge symmetries (forces) and the families of quarks and leptons (matter) that we observe today. Once the fundamental theory is constructed it is likely that it will suggest the best approach to answer our current mysteries, including dark matter, dark energy and a host of issues related to masses and interactions of quarks, leptons and force particles.
All the physics we know with certainty
today at microscopic or macroscopic distance scales is embodied in principle in
the fundamental laws described by the Standard Model of Particles and Forces,
and in General Relativity. In 2006 I
discovered the 2T Standard Model and in 2008 2TGravity,
both in 4space and 2time dimensions. Supersymmetric
2Tfield theory in 4+2 dimensions has also been achieved
during 20072009. From the point of view of these 2T field theories, as well as
2T particle dynamics that I developed since 1995, all known physical phenomena
experienced in 3space and 1time dimensions, as described in 1Tphysics,
appear as various “shadows” of phenomena in 4+2 dimensions. 2Tphysics captures
“hidden” properties of physical systems in 3+1 dimensions that are
systematically missed by the usual 1Tphysics formulation (see simplest example). The existence of such verifiable
predictions, that 1Tphysics can only confirm but cannot foresee
systematically, show that 2TPhysics is a larger unifying framework and an
unavoidable completion of 1Tphysics. I therefore expect that the methods of
2Tphysics will prove to be essential in the construction of the ultimate
unified theory as well as in a more complete description of all physics at all
scales of distance or of energy.
I emphasize symmetries and supersymmetries in much of my research on particle
physics, field theory and string theory. From time to time the symmetry structures
in physics have led me to discover new physical concepts, such as TwoTime
Physics (2TPhysics), as well as a few new structures
in Mathematics or Mathematical Physics, in particular in supergroups, noncompact groups, and noncommutative geometry.
This activity also took me on side trips into applications of symmetries in
other fields of physics. Consequently, supersymmetry
in nuclear physics was experimentally confirmed as
an approximate symmetry of bosonic and fermionic nuclei.
Some of the theoretical computations I did in the past on the Standard Model,
gauge theories, and grand unification, are currently of experimental interest.
In particular the first computation of the weak
interaction contribution to the anomalous
magnetic moment of the muon has recently been confirmed by measurements
performed more than 30 years later.
For more details on my research interests look here
Teaching
Lecture notes available online
Lectures on the Standard Model
Quantum Mechanics (a book)
Conceptual Physics
Physics for the Life Sciences