Muthuswamy SIVAKUMAR

I did my BSc and MSc from
University of Madras
and completed my PhD under Prof PM Mathews in Department of
Theoretical Physics,
University of Madras on Relativistic wave equations and
Kaluza-Klein theory.

After post-doctoral research in Institute of
Mathematical
Sciences, Chennai and SN Bose National Center for Basic
Sciences, Kolkata from
1987 to 1990, I joined University of Hyderabad as a lecturer
in 1990.I am
currently a Professor in School of Physics, University of
Hyderabad.

I have visited Abdus Salam International center
for Theoretical
Physics, Trieste, Italy several times as visiting scientist
and associate member.
Other short-term visit abroad include visits to Max-Planck Institute for
Gravitational
Physics at Potsdam several times, PN Lebedev institute of
Physical Science,
Moscow, 2011, Center for Quantum Spacetime, Seoul, S.Korea,
2008, Sao-Paulo University,
2008.

My broad
interest is in
Theoretical Physics; specifically in Quantum Field Theory with
application to
problems High Energy Physics and Condensed matter physics and
General theory of
Relativity.

Quantum field
theory is quantum
mechanics applied to systems with infinite degrees of freedom
and as such has
relevance to physics at wide range of length scales.

At one
smallest scale as Planck
scale where quantum gravity effects take over, theories with
huge symmetries
can be expected to become relevant: Higher spin symmetry is a
strong candidate
for it. The problem of constructing equations for massive or
massless arbitrary
spin particles in the presence of interactions (even external)
in generality is
still an outstanding problem. A major progress has been made
by Vasiliev using
higher spin symmetry, who has constructed non-linear equations
for massless
case with symmetric tensor representation of particles. Its
relation to
conventional field theory Couplings and obtaining Vasiliev
equations from
Holographic models like O(3) models is an active area of
research.

Is
gravitational force a
fundamental force as it is stated in text books or it is an
effect of something
more basic? If so, is space-time, the arena for action, itself
is basic or it
is effect of something more fundamental? These questions in
recent times, has been
asked and is an active area of research. Is non-commutative
geometry an
underlying reason for this emergent gravity behavior?

The other
problem which still
shows lot of novelty and scope for deeper understanding is
fractional quantum
Hall effect. Chern-Simons field theory is an essential
ingredient of its
understanding. Recently new developments in q^2 expansion of
hall conductivity,
with non-dissipative Hall viscosity as its coefficient has
taken place. This
has very interesting links with varied subjects like emergent
graviton, quantum
geometry. Deeper understanding of Hall viscosity and
experimental
predictions/observations of these are still open issues.

These are some
issues that I am
thinking about.

Books
published**:
ÒSurveys in Theoretical High Energy Physics 2:Lecture
Notes from SERC
Schools****:**
Edited by Raghavan
Rangarajan and M.Sivakumar: Hindustan Publishers Published in
2014: **cite link:****
Click Here **

Selected
publications:

1) LRS Bianchi
type-I
cosmological model in f (R, T) theory of gravity with Δ
(T)

P.K. Sahoo
(Birla Inst. Tech.
Sci.), M. Sivakumar (Hyderabad U.). 2015.

Astrophys.Space
Sci. 357 (2015)
1, 60

2) Consistent
Non-Minimal
Couplings of Massive Higher-Spin Particles

Ignacio
Cortese, Rakibur
Rahman, M. Sivakumar

Nucl.Phys.
B879 (2014) 143-161

3) Emergent
Geometry from
Quantized Spacetime

Hyun Seok
Yang, M. Sivakumar

Phys.Rev. D82
(2010) 045004

4) The
Hydrodynamical Limit of
Quantum Hall system

D. Sreedhar
Babu (IMSC), R.
Shankar (IMSC), M. Sivakumar (Univ. Hyderabad)

Int.J.Mod.Phys. B15 (2001) 2771-2782

5) Duality and
Massive Gauge
Invariant Theories

E.Harikumar,
M. Sivakumar

Phys.Rev. D57
(1998) 3794.

6) Is the
$O(3)~σ$
Model with the
Hopf Term Exactly Equivalent to a Higher Spin Theory?

T.R.Govindarajan,
R.Shankar,
N.Shaji, M.Sivakumar

Phys.Rev.Lett.
69 (1992)
721-724

7) Gauge -
Invariant
Description of Massive Higher - Spin Particles by Dimensional
Reduction

S.D. Rindani,
M. Sivakumar
(Madras U.).

Phys.Rev. D32 (1985) 323

AWARDS
&
HONORS:

1)
Associate
Member,
Abdus Salam International Center for Theoretical Physics,
Trieste, Italy
(1996-2004)

2)
INSA
Visiting
Fellow (1994)

3)
Fellow
of Andhra
Pradesh Academy of Sciences

4)
Fellow
of Telangana
Academy of Sciences

Outreach and
Pedagogy:

I have an
abiding interest in
academic outreach activities, physics education and pedagogy.
I directed two
SERC schools on Theoretical High Energy Physics. As general
secretary of Indian
Physics Association, Hyderabad Chapter, I conducted quiz for
schools and
colleges across the city and also organized a one-day workshop
for schoolteachers
on teaching Basic physics. I wrote a pedagogic article
summarizing basic
concepts behind R**enormalization group**: Basics of
Renormalization
group: Divide and Conquer. Click
here

I plan to
write more such
articles on different topics like Broken symmetry, quantum
Hall effect,
space-time symmetries and representation and more like that.

A Book review
in Current
Science**: Einstein and
the Quantum: by
Douglas Stone. Click
here**

** **

STUDENTS
CORNER:

MSc students
interested in
project/internship (no financial support at present) and
motivated to learn and
work hard, can contact me.

Contact
Details:

M.Sivakumar,

School of
Physics,

University of
Hyderabad,

Dr C.R.Rao
Road,

Hyderabad-500046.

Office:
(040)
23134354
Email:
msivakumar.m@gmail.com mssp@uohyd.ernet.in