129 citations · 465 across the 16 of their papers we have counts for
17 papers
Projective symmetry group classification of fermionic spin liquids on the dipolar-octupolar pyrochlore magnets
Rohit Deb, Sambuddha Sanyal
We construct and classify quantum spin liquids (QSLs) of fermionic partons on the dipolar-octupolar (DO) pyrochlore lattice. The DO pseudospin shares the space-group and time…
Dynamically Generated Fermi Surface Mismatch and Relativistic Superfluidity in a Two-Component Massless Fermionic Theory
Susobhan Mandal, Sambuddha Sanyal
When fermions pair across mismatched Fermi surfaces, the mismatch reflects a built-in inequivalence between the species. We show it can instead arise dynamically by spontaneous sym…
Emergent Nonperturbative Universal Floquet Localization
Soumadip Pakrashi, Atanu Rajak, Sambuddha Sanyal
We show that a robust, nonperturbative localization plateau emerges in periodically driven quasiperiodic lattices, independent of the static localization properties and drive proto…
U(1) quantum spin liquids in dipolar-octupolar pyrochlore magnets: a fermionic parton approach
Krushna Chandra Sahu, Sambuddha Sanyal
We study the uniform quantum spin liquid (QSL) with low-energy fermionic quasiparticles for pyrochlore magnets with dipolar-octupolar symmetry, employing a fermionic parton…
Emergent scale and anomalous dynamics in certain quasi-periodic systems
Parvathy S Nair, Dintomon Joy, Sambuddha Sanyal
We study localisation transition in a class of quasi-periodic systems that has two competing periodic scales. We show that such class of systems show a re-entrant localisation tran…
Unidirectional subsystem symmetry in a hole-doped honeycomb-lattice Ising magnet
Sambuddha Sanyal, Alexander Wietek, John Sous
We study a model of a hole-doped collinear Ising antiferromagnet on the honeycomb lattice as a route toward the realization of subsystem symmetry. We find nearly exact conservation…
Emergent moments and random singlet physics in a Majorana spin liquid
S. Sanyal, K. Damle, J. T. Chalker +1
We exhibit an exactly solvable example of a SU(2) symmetric Majorana spin liquid phase, in which quenched disorder leads to random-singlet phenomenology. More precisely, we argue t…
Interplay of uniform U(1) quantum spin liquid and magnetic phases in rare earth pyrochlore magnets : a fermionic parton approach
Sambuddha Sanyal, Kusum Dhochak, Subhro Bhattacharjee
We study the uniform time reversal invariant quantum spin liquid (QSL) with low energy fermionic quasi-particles for rare earth pyrochlore magnets and explore its magnetic i…
Random Matrices and Holographic Tensor Models
Chethan Krishnan, K. V. Pavan Kumar, Sambuddha Sanyal
We further explore the connection between holographic tensor models and random matrices. First, we consider the simplest non-trivial uncolored tensor model and show that the…
Anomalous transport in the Aubry-André-Harper model in isolated and open systems
Archak Purkayastha, Sambuddha Sanyal, Abhishek Dhar +1
We study the high temperature transport behavior of the Aubry-André-Harper (AAH) model, both in the isolated thermodynamic limit and in the open system. At the critical point of th…
Quantum Chaos and Holographic Tensor Models
Chethan Krishnan, Sambuddha Sanyal, P. N. Bala Subramanian
A class of tensor models were recently outlined as potentially calculable examples of holography: their perturbative large- behavior is similar to the Sachdev-Ye-Kitaev (SYK) mo…
Glueball Spectra from a Matrix Model of Pure Yang-Mills Theory
Nirmalendu Acharyya, A. P. Balachandran, Mahul Pandey +2
We present variational estimates for the low-lying energies of a simple matrix model that approximates Yang-Mills theory on a three-sphere of radius . By fixing the grou…
Vacancy-induced low-energy states in undoped graphene
Sambuddha Sanyal, Kedar Damle, Olexei I. Motrunich
We demonstrate that a nonzero concentration of static, randomly-placed vacancies in graphene leads to a density of zero-energy quasiparticle states at the band-center $ε=…
Antiferromagnetic order in systems with doublet ground states
Sambuddha Sanyal, Argha Banerjee, Kedar Damle +1
We use projector Quantum Monte-Carlo methods to study the doublet ground states of two dimensional antiferromagnets on a square lattice with…
Vacancy-induced spin texture in a one dimensional Heisenberg antiferromagnet
Sambuddha Sanyal, Argha Banerjee, Kedar Damle
We study the effect of a missing spin in a one dimensional antiferromagnet with nearest neighbour Heisenberg exchange and six-spin coupling using Quantum Monte-…
Kaon properties in (proto)neutron stars
Amruta Mishra, Arvind Kumar, Sambuddha Sanyal +2
The modification on kaon and antikaon properties of in the interior of (proto-)neutron stars is investigated using a chiral SU(3) model. The parameters of the model are fitted to n…
Kaon and antikaon optical potentials in isospin asymmetric hyperonic matter
Amruta Mishra, Arvind Kumar, Sambuddha Sanyal +1
The medium modifications of the energies of kaons and antikaons in isospin asymmetric hyperonic matter are investigated using a chiral SU(3) model. The isospin dependent medium eff…