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Physical Review E
IF
2.35
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59471
Papers 58649
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Published in Physical Review E 2.35
Gyu Ho Bae , Seung Ki Baek11
Estimated H-index: 11
Many small organisms such as bacteria can attract each other by depositing chemical attractants. At the same time, they exert repulsive force on each other when crowded, which can be modeled by effective pressure as an increasing function of the organisms' density. As the chemical attraction becomes strong compared to the effective pressure, the system will undergo a phase transition from homogeneous distribution to aggregation. In this work, we describe the interplay of organisms and chemicals ...
Published on Jun 10, 2019in arXiv: Statistical Mechanics
Chaitanya Murthy2
Estimated H-index: 2
(UCSB: University of California, Santa Barbara),
Mark Srednicki30
Estimated H-index: 30
(UCSB: University of California, Santa Barbara)
We consider a chaotic many-body system that is split into two subsystems, with an interaction along their mutual boundary, and study the entanglement properties of an energy eigenstate with nonzero energy density. When the two subsystems have nearly equal volumes, we find a universal correction to the entanglement entropy that is proportional to the square root of the system's heat capacity (or a sum of capacities, if there are conserved quantities in addition to energy). This phenomenon was fir...
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