Emergent SO(3) Symmetry of the Frictionless Shear Jamming Transition
- Alternative Energies and Atomic Energy Commission (CEA), Saclay (France). Inst. of Theoretical Physics (IPhT); Univ. of Pennsylvania, Philadelphia, PA (United States). Dept. of Physics and Astronomy
- Univ. of Pennsylvania, Philadelphia, PA (United States). Dept. of Physics and Astronomy; Harvard Univ., Cambridge, MA (United States). School of Engineering and Applied Sciences (SEAS)
- Univ. of Pennsylvania, Philadelphia, PA (United States). Dept. of Physics and Astronomy
- Univ. of Chicago, IL (United States). Enrico Fermi Inst.
- Cornell Univ., Ithaca, NY (United States). Dept. of Physics
Here, we study the shear jamming of athermal frictionless soft spheres, and find that in the thermodynamic limit, a shear-jammed state exists with different elastic properties from the isotropically-jammed state. For example, shear-jammed states can have a non-zero residual shear stress in the thermodynamic limit that arises from long-range stress-stress correlations. As a result, the ratio of the shear and bulk moduli, which in isotropically-jammed systems vanishes as the jamming transition is approached from above, instead approaches a constant. In contrast to these striking differences, we argue that in a deeper sense, the shear jamming and isotropic jamming transitions actually have the same symmetry, and that the differences can be fully understood by rotating the six-dimensional basis of the elastic modulus tensor.
- Research Organization:
- Univ. of Chicago, IL (United States); Univ. of Pennsylvania, Philadelphia, PA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
- Grant/Contract Number:
- FG02-03ER46088; FG02-05ER46199
- OSTI ID:
- 1596343
- Journal Information:
- Journal of Statistical Physics, Vol. 167, Issue 3-4; ISSN 0022-4715
- Publisher:
- SpringerCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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