4 research outputs found
Graphene is neither Relativistic nor Non-Relativistic case: Thermodynamics Aspects
Discovery of electron hydrodynamics in graphene system has opened a new scope
of analytic calculations in condensed matter physics, which was traditionally
well cultivated in science and engineering as a non-relativistic hydrodynamics
and in high energy nuclear and astro physics as relativistic hydrodynamics.
Electrons in graphene follow neither non-relativistic nor relativistic
hydrodynamics and thermodynamics. Present article has gone through systematic
microscopic calculations of thermodynamical quantities like pressure, energy
density, etc. of electron-fluid in graphene and compared with corresponding
estimations for non-relativistic and ultra-relativistic cases. Identifying the
Dirac fluid and Fermi liquid domains, we have sketched the transition of
temperature and Fermi energy dependency of electron thermodynamics for graphene
and other cases. An equivalent transition for quark matter is also discussed.
The most exciting part is the general expression of specific heat, whose Fermi
to Dirac fluid domain transition can be realized as a transition from a
solid-based to a fluid-based picture. This understanding may be connected to
the experimentally observed Wiedemann-Franz Law violation in the Dirac fluid
domain of graphene system.Comment: 16 pages, 13 figure
Dynamics of Hot QCD Matter -- Current Status and Developments
The discovery and characterization of hot and dense QCD matter, known as
Quark Gluon Plasma (QGP), remains the most international collaborative effort
and synergy between theorists and experimentalists in modern nuclear physics to
date. The experimentalists around the world not only collect an unprecedented
amount of data in heavy-ion collisions, at Relativistic Heavy Ion Collider
(RHIC), at Brookhaven National Laboratory (BNL) in New York, USA, and the Large
Hadron Collider (LHC), at CERN in Geneva, Switzerland but also analyze these
data to unravel the mystery of this new phase of matter that filled a few
microseconds old universe, just after the Big Bang. In the meantime,
advancements in theoretical works and computing capability extend our wisdom
about the hot-dense QCD matter and its dynamics through mathematical equations.
The exchange of ideas between experimentalists and theoreticians is crucial for
the progress of our knowledge. The motivation of this first conference named
"HOT QCD Matter 2022" is to bring the community together to have a discourse on
this topic. In this article, there are 36 sections discussing various topics in
the field of relativistic heavy-ion collisions and related phenomena that cover
a snapshot of the current experimental observations and theoretical progress.
This article begins with the theoretical overview of relativistic
spin-hydrodynamics in the presence of the external magnetic field, followed by
the Lattice QCD results on heavy quarks in QGP, and finally, it ends with an
overview of experiment results.Comment: Compilation of the contributions (148 pages) as presented in the `Hot
QCD Matter 2022 conference', held from May 12 to 14, 2022, jointly organized
by IIT Goa & Goa University, Goa, Indi
Equity and the Sun Quality Health Private Provider Social Franchise: comparative analysis of patient survey data and a nationally representative TB prevalence survey
Abstract Introduction Since 2004, the Sun Quality Health (SQH) franchise network has provided TB care in Myanmar through a network of established private medical clinics. This study compares the wealth distribution of the TB patients to non-TB patients to determine if TB is most common among the poor, and compares the wealth of all TB patients to SQH TB patients to assess whether the franchise achieves its goal of serving the poor. Methods The study uses data from two sources: 1) Myanmar’s first nationally representative TB prevalence study conducted in 2009, and 2) client exit interviews from TB patients from SQH clinics. In total, 1,114 TB-positive individuals were included in the study, including 739 from the national sample and 375 from the SQH sample. Results TB patients at SQH clinics were poorer than TB-positive individuals in the overall population, though not at a statistically significant level (p > 0.05). After stratification we found that in urban areas, TB patients at SQH clinics were more likely to be in the poorest quartile compared to general TB positive population (16.8% vs. 8.6%, respectively; p < 0.05). In rural areas, there was no statistically significant difference between the wealth distribution of SQH clinic patients and general TB positive individuals (p > 0.05). Conclusion Franchised clinics in Myanmar are reaching poor populations of TB patients in urban areas; more efforts are needed in order to reach the most vulnerable in rural areas