Publications
Publications
1. Hrushikesh Sable, Nathan Myers, and Vito Scarola, Toward quantum analog simulation of many-body supersymmetry with Rydberg atom arrays, Phys. Rev. Lett 135, 033401 (2025).
In this Letter, we have proposed an observable for the Witten index, a topological quantum number that characterizes the supersymmetry, and shown how Rydberg atoms in tweezers are surprisingly relevant for its quantum simulation.
2. Nathan Myers, Hrushikesh Sable, and Vito Scarola, Unifying Collisional Models and the Monte Carlo Metropolis Method: Algorithms for Dynamics of Open Quantum Systems, Phys. Rev. E 111, 014115 (2025).
In this work, we have developed an algorithm for the open system dynamics based on quantum collisional models, and have shown its equivalence with the stochastic Monte Carlo Metropolis method
3. Deepak Gaur, Hrushikesh Sable, and Dilip Angom, Exact-diagonalization method for soft-core bosons in optical lattices using hierarchical wavefunctions, Phys. Rev. A 110, 043305 (2024).
In this work, we have outlined a numerical algorithm for exact diagonalization method for lattice systems using hierachial wavefunctions. We benchmark our method across other available codes.
4. Hrushikesh Sable, Deepak Gaur, and Dilip Angom, Fine-grained domain counting and percolation analysis in 2D lattice systems with linked-lists, Phys. Rev. E 108, 045307 (2024).
In this work, we have outlined a numerical algorithm for fine-grained percolation analysis suitable for lattice systems. We demonstrate the supremacy of our method over the conventional Hoshen-Kopelman technique.
5. Deepak Gaur, Hrushikesh Sable, and Dilip Angom, Quench dynamics across the MI-SF quantum phase transition with cluster mean field theory, arXiv: 2309.06272.
In this work, we have revisited the Kibble-Zurek scaling problem across the Mott-Insulator to Superfluid phase transition using our state-of-the-art cluster Gutzwiller mean-field technique. We highlight the effect of correlations captured by the cluster method in comparison to the mean-field dynamics.
6. Deepak Gaur, Hrushikesh Sable, and Dilip Angom, Fractional quantum Hall effect in optical lattices, Frontiers in Physics 10, 1106491 (2023).
We have demonstrated the fractional quantum Hall state with the Bose-Hubbard model in the presence of artificial gauge field. We have also shown the enhancement in the stability of this state with the dipolar interactions.
7. S. Bandyopadhyay, H. Sable, D. Gaur, R. Bai, S. Banerjee, and D. Angom, Quantum phases of dipolar bosons in a multilayer optical lattice, Phys. Rev. A 106, 043301 (2022).
We have presented the phase diagrams of the bosonic atoms in bilayer and multilayer optical lattices, which are pertinent setups in studies related to high-temperature superconductivity.
8. H. Sable, D. Gaur, S. Bandyopadhyay, R. Nath, and D. Angom, Quantum quench dynamics of tilted dipolar bosons in 2D optical lattices, arXiv: 2106.01725.
We have studied the Kibble-Zurek (KZ) scaling laws across the quantum phase transitions (QPT) exhibited by dipolar bosonic atoms in optical lattices. A key feature of this work is the demonstration of the KZ scaling laws for the first order QPTs.
9. K. Suthar, R. Kraus, H. Sable, D. Angom, G. Morigi, and J. Zakrzewski, Staggered superfluid phases of dipolar bosons in two-dimensional square lattices, Phys. Rev. B 102, 214503 (2020).
In this work, we have unraveled the exotic staggered quantum phases of bosons when they are subjected to the higher-order interaction processes - such as density induced tunneling and pair tunneling, in optical lattice setups.
10. R. Bai, D. Gaur, H. Sable, S. Bandyopadhyay, K. Suthar, and D. Angom, Segregated quantum phases of dipolar bosonic mixtures in two-dimensional optical lattices, Phys. Rev. A 102, 043309 (2020).
The aim in this work was to study the quantum phases in a binary mixture of dipolar bosons in a 2D optical lattice.
11. K. Suthar, H. Sable, R. Bai, S. Bandyopadhyay, S. Pal, and D. Angom, Supersolid phase of the extended Bose-Hubbard model with an artificial gauge fields, Phys. Rev. A 102, 013320 (2020).
In this work, we discussed the quantum phases and phase diagrams of the extended Bose-Hubbard model. The key feature of this work was to show that the domain of the supersolid phase enlarges when artificial gauge fields are present.
12. A. Banerji, A. Anwar, H. Sable, N Lal, and R.P. Singh, Engineering of orbital angular momentum spectrum of down-converted photons with mode-invariant pump, arXiv: 1905.02554.
In this work, we investigate the orbital angular momentum spectrum of photons produced in parametric down conversion process.
13. Hrushikesh Sable, Devendra Bhakuni, and Auditya Sharma, Landauer current and mutual information in a bosonic quantum dot, J. Phys.: Conf. Ser. 964 012007 (2018).
In this paper, we studied the quantum transport of bosons coupled to two macroscopic heat baths, and recasted the particle current into a Landauer form.