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of 22
pro vyhledávání: '"Kumar, K. V. Pavan"'
We show that a natural spinor-helicity formalism that can describe massive scattering amplitudes exists in $D=6$ dimensions. This is arranged by having helicity spinors carry an index in the Dirac spinor {\bf 4} of the massive little group, $SO(5) \s
Externí odkaz:
http://arxiv.org/abs/1810.11803
Autor:
Krishnan, Chethan, Kumar, K. V. Pavan
Publikováno v:
Advances in Theoretical and Mathematical Physics, Volume 23 (2019), Number 7
Building on a strategy introduced in arXiv:1706.05364, we present exact analytic expressions for all the singlet eigenstates and eigenvalues of the simplest non-linear ($n=2, d=3$) gauged Gurau-Witten tensor model. This solves the theory completely.
Externí odkaz:
http://arxiv.org/abs/1804.10103
Autor:
Krishnan, Chethan, Kumar, K. V. Pavan
Publikováno v:
Phys. Rev. Lett. 120, 201603 (2018)
Gauged tensor models are a class of strongly coupled quantum mechanical theories. We present the exact analytic solution of a specific example of such a theory: namely the smallest colored tensor model due to Gurau and Witten that exhibits non-linear
Externí odkaz:
http://arxiv.org/abs/1802.02502
Publikováno v:
J. Math. Phys. 60, 021701 (2019)
The construction of fully (anti-)symmetric states with many particles, when the single particle state carries multiple quantum numbers, is a problem that seems to have not been systematically addressed in the literature. A quintessential example is t
Externí odkaz:
http://arxiv.org/abs/1711.09811
We contrast some aspects of various SYK-like models with large-$N$ melonic behavior. First, we note that ungauged tensor models can exhibit symmetry breaking, even though these are 0+1 dimensional theories. Related to this, we show that when gauged,
Externí odkaz:
http://arxiv.org/abs/1709.06498
Autor:
Krishnan, Chethan, Kumar, K. V. Pavan
We suggest that holographic tensor models related to SYK are viable candidates for exactly (ie., non-perturbatively in $N$) solvable holographic theories. The reason is that in these theories, the Hilbert space is a spinor representation, and the Ham
Externí odkaz:
http://arxiv.org/abs/1706.05364
We further explore the connection between holographic $O(n)$ tensor models and random matrices. First, we consider the simplest non-trivial uncolored tensor model and show that the results for the density of states, level spacing and spectral form fa
Externí odkaz:
http://arxiv.org/abs/1703.08155
Publikováno v:
JHEP10(2016)043
We define a (semi-classical) path integral for gravity with Neumann boundary conditions in $D$ dimensions, and show how to relate this new partition function to the usual picture of Euclidean quantum gravity. We also write down the action in ADM Hami
Externí odkaz:
http://arxiv.org/abs/1609.04719
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