12 citations · 99 across the 21 of their papers we have counts for
21 papers
The fate of chiral symmetry in two-flavor matrix adjoint QCD
Nirmalendu Acharyya, Prasanjit Aich, Sayan Bhakta +2
In the matrix model of two-flavor adjoint QCD, we study the low-lying states and their properties in the intermediate-to-strong (Yang-Mills) coupling regime. The model has a cl…
Quantum phases at high chemical potential in 2-flavor matrix-QCD
Nirmalendu Acharyya, Prasanjit Aich, Arkajyoti Bandyopadhyay +1
We investigate the matrix model of two-color two-flavor QCD (matrix-QCD) in regimes with large baryon (), isospin (), and/or chiral () chemical potential…
Localization-delocalization transition at weak coupling in two-color matrix QCD
Nirmalendu Acharyya, Prasanjit Aich, Arkajyoti Bandyopadhyay +1
We numerically investigate the matrix model of two-color one-flavor adjoint QCD (matrix-QCD) in the weak coupling regime (small ) and in the chiral limit. T…
The matrix model of two-color one-flavor QCD: The ultra-strong coupling regime
Nirmalendu Acharyya, Prasanjit Aich, Arkajyoti Bandyopadhyay +1
Using variational methods, we numerically investigate the matrix model for the two-color QCD coupled to a single quark (matrix-QCD) in the limit of ultra-strong Yang-Mills…
Edge states and anomalous SUSY in (2+1)-dimensional Maxwell Chern-Simons theory
Nirmalendu Acharyya, Akash Sinha
In a -dimensional Maxwell-Chern-Simons theory coupled with a fermion and a scalar, which has SUSY in absence of the boundary, the insertion of a spatial boun…
On the Role of Non-Diagonal System-Environment Interactions in Bridge-Mediated Electron Transfer
Nirmalendu Acharyya, Roman Ovcharenko, Benjamin P. Fingerhut
Bridge-mediated electron transfer (ET) between a donor and an acceptor is prototypical for the description of numerous most important ET scenarios. While multi-step ET and the inte…
Axial Anomaly in the Gauge Matrix Model
Nirmalendu Acharyya, Mahul Pandey, Sachindeo Vaidya
The Yang-Mills matrix model admits self-dual and anti-self-dual instantons. When coupled to flavors of massless quarks, the Euclidean Dirac equation in an instanton b…
Coherent Dynamics of the Off-Diagonal Spin-Boson Model in the Ultra-Strong Coupling Regime
Nirmalendu Acharyya, Martin Richter, Benjamin P. Fingerhut
Quantum mechanics describes the unitary time evolution of closed systems. In practice, every quantum system interacts with the environment leading to an irreversible loss of cohere…
Large Q factor with very small Whispering Gallery Modes resonators
Nirmalendu Acharyya, Gregory Kozyreff
Efficient micro-resonators simultaneously require a large quality factor and a small volume . However, the former is ultimately limited by bending losses, the unavoidable ra…
Multiple critical coupling and sensing in a microresonator-waveguide system
Nirmalendu Acharyya, Gregory Kozyreff
We study the optical transmission of a waveguide that is side-coupled to a high- circular microresonator. The coupling is critical if the intrinsic resonator losses equate the c…
Matrix Model of QCD: Edge Localized Glue Balls and Phase Transitions
Nirmalendu Acharyya, A. P. Balachandran
In a matrix model of pure Yang-Mills theory, boundaries emerge in the space of and the Hamiltonian requires boundary conditions. We show the…
Dispersion relations and bending losses of cylindrical and spherical shells, slabs, and slot waveguides
Gregory Kozyreff, Nirmalendu Acharyya
We derive formulas for Whispering Gallery Mode resonances and bending losses in infinite cylindrical dielectric shells and sets of concentric cylindrical shells. The formulas also…
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…
BRST Symmetry: Boundary Conditions and Edge States in QED
Nirmalendu Acharyya, A. P. Balachandran, Verónica Errasti Díez +2
In manifolds with spatial boundary, BRST formalism can be used to quantize gauge theories. We show that, in a gauge theory, only a subset of all the boundary conditions allo…
Supersymmetry: Boundary Conditions and Edge States
Nirmalendu Acharyya, Manuel Asorey, A. P. Balachandran +1
When spatial boundaries are inserted, SUSY can be broken. We show that in an supersymmetric theory, all the boundary conditions allowed by self-adjointness of the H…
Monopoles, Dirac operator and index theory for fuzzy
Nirmalendu Acharyya, Verónica Errasti Díez
The intersection of the 10-dimensional fuzzy conifold with is the compact 8-dimensional fuzzy space . We show that is (the analogue o…
Quantum Entropy for the Fuzzy Sphere and its Monopoles
Nirmalendu Acharyya, Nitin Chandra, Sachindeo Vaidya
Using generalized bosons, we construct the fuzzy sphere and monopoles on in a reducible representation of . The corresponding quantum states are naturally ob…
Fuzzy Conifold and Monopoles on
Nirmalendu Acharyya, Sachindeo Vaidya
In this article, we construct the fuzzy (finite dimensional) analogues of the conifold and its base . We show that fuzzy is (the analogue of) a principal U(1) bund…
Monopoles On From The Fuzzy Conifold
Nirmalendu Acharyya, Sachindeo Vaidya
The intersection of the conifold and is a compact 3--dimensional manifold . We review the description of as a principal U(1) bundle over $S^…
Noncommutative Vortices and Instantons from Generalized Bose Operators
Nirmalendu Acharyya, Nitin Chandra, Sachindeo Vaidya
Generalized Bose operators correspond to reducible representations of the harmonic oscillator algebra. We demonstrate their relevance in the construction of topologically non-trivi…
Uniformly Accelerated Observer in Moyal Spacetime
Nirmalendu Acharyya, Sachindeo Vaidya
In Minkowski space, an accelerated reference frame may be defined as one that is related to an inertial frame by a sequence of instantaneous Lorentz transformations. Such an accele…