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NCTS researcher, Dr. Dimitrios Giataganas published a paper in Phys. Rev. Lett. on the anisotropic effects on phase change in strongly interacting confining matter

Research Highlight
Poster:Daw-Wei WangPost date:2018-10-16
Decorative image
Deconfinement is a phase transition where subatomic matter such as protons and neutrons crack open, setting free their building blocks i.e. the quarks and the gluons. The resulting phase, the quark gluon plasma, is conjectured
to be the fabric of our universe microseconds after the Big Bang. Astonishingly, this state of matter is currently being created at the heavy ion colliders RHIC at Brookhaven and LHC at CERN.

In their work, Dr.  Dimitrios Giataganas and their collaborators have found that this transition occurs easily, i.e. at a
lower temperature, when the vacuum state is deformed above a certain level of anisotropy. The resulting plasma phase would then also be anisotropic showing different pressure gradients in different directions in space. Such
a plasma state is indeed produced in the aforementioned experiments when the beams collide with a nonvanishing impact parameter. More accurately put, we find that anisotropy acts as a common catalyst for deconfinement in
a generic class of strongly interacting quantum matter with a confining vacuum state. Our findings imply that the so-called “inverse magnetic catalysis”, a phenomenon previously observed in lattice QCD studies showing quark condensates melting easier in the presence of magnetic fields, might be happening because of the anisotropy triggered by the magnetic field rather than its influence on charge dynamics. Therefore, our work brings a new twist on the understanding of the quantum phase transitions in such conditions.

Separately, they discover that quantum information is transferred faster in an anisotropic space, violating a conjectured bound on the butterfly velocity which holds for isotropic systems. This latter finding might have
important applications in the context of quantum information theory. 

Ref: 
Strongly Coupled Anisotropic Gauge Theories and Holography, Phys. Rev. Lett. 121, 121601 (2018)
 
 
Last modification time:2018-10-16 PM 2:36

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