Publications (66)
Study of Low Temperature Magnetic Properties of a Single Chain Magnet With Alternate Isotropic and Non-Collinear Anisotropic Units
Shaon Sahoo, Jean-Pascal Sutter, S. Ramasesha
Density matrix renormalization group algorithm for Bethe lattices of spin 1/2 or 1 sites with Heisenberg antiferromagnetic exchange
Manoranjan Kumar, S. Ramasesha, Zoltan G. Soos
Density matrix renormalization group (DMRG) for cyclic and centrosymmetric linear chains
Manoranjan Kumar, Dayasindhu Dey, Aslam Parvej +2
1:1 alkali-TCNQ salts and the bond order wave (BOW) phase of half-filled linear Hubbard-type models
Z G. Soos, M. Kumar, S. Ramasesha +1
Microscopic Model for Photoinduced Magnetism in the Molecular Complex $[Mo(IV)(CN)_2(CN-CuL)_6]^{8+}$ Perchlorate
Rajamani Raghunathan, S. Ramasesha, Corine Mathonière +1
Magnetization Properties of Some Quantum Spin Ladders
Kunj Tandon, Siddhartha Lal, Swapan K. Pati +2
Quantum Phases of Long Range 1-D Bose-Hubbard Model: Field Theoretic and DMRG Study at Different Densities
Manoranjan Kumar, Sujit Sarkar, S. Ramasesha
Low-Lying Excited States and Low-Temperature Properties of an Alternating Spin-1 / Spin-1/2 Chain : A DMRG study
Swapan K. Pati, S. Ramasesha, Diptiman Sen
Bond-order wave phase, spin solitons and thermodynamics of a frustrated linear spin-1/2 Heisenberg antiferromagnet
Manoranjan Kumar, S. Ramasesha, Z. G. Soos
Multi-configurational Symmetrized Projector Quantum Monte Carlo Studies of excited states of the Hubbard model
Bhargavi Srinivasan, S. Ramasesha, H. R. Krishnamurthy
Correlated Electronic Properties of Some Graphene Nanoribbons: A DMRG Study
V. M. L. Durga Prasad Goli, Suryoday Prodhan, Sumit Mazumdar +1
Electron correlation effects in electron-hole recombination in organic light-emitting diodes
K. Tandon, S. Ramasesha, S. Mazumdar
Characterization of the Energy Structure and Adiabatic Magnetization Process of V15
Indranil Rudra, K. Saito, S. Ramasesha +1
Magnetization of Mn_12 Ac in a slowly varying magnetic field: an ab initio study
Indranil Rudra, S. Ramasesha, Diptiman Sen
Exact Wave Packet Dynamics of Singlet Fission in Unsubstituted and Substituted Polyene Chains within Long-Range Interacting Models
Suryoday Prodhan, S. Ramasesha
Low-Lying Electronic Excitations and Nonlinear Optic Properties of Polymers via Symmetrized Density Matrix Renormalization Group Method
S. Ramasesha, Swapan K. Pati, H. R. Krishnamurthy +2
Dynamical Nonlinear Optic Coefficients from the Symmetrized Density Matrix Renormalization Group Method
Swapan K. Pati, S. Ramasesha, Z. Shuai +1
Symmetrized DMRG Method for Excited States of Hubbard Models
S. Ramasesha, Swapan K. Pati, H. R. Krishnamurthy +2
A Theoretical Approach for Computing Magnetic Anisotropy in Single Molecule Magnets
Rajamani Raghunathan, S. Ramasesha, Diptiman Sen
Role of Electron--Electron Interactions on Spin Effects in Electron--Hole Recombination in Organic Light Emitting Diodes
Mousumi Das, S. Mazumdar, S. Ramasesha
Magnetic properties of a helical spin chain with alternating isotropic and anisotropic spins: magnetization plateaus and finite entropy
V. Ravi Chandra, S. Ramasesha, Diptiman Sen
Phase Diagram of the Spin-One Heisenberg System with Dimerization and Frustration
Swapan Pati, R. Chitra, Diptiman Sen +2
Dynamic Oscillations of Magnetization in High Spin Magnetic Clusters
Indranil Rudra, S. Ramasesha
Evaluation of low-energy effective Hamiltonian techniques for coupled spin triangles
C. Raghu, Indranil Rudra, S. Ramasesha +1
Exact and Approximate Theoretical Techniques for Quantum Magnetism in Low Dimensions
Swapan K. Pati, S. Ramasesha, Diptiman Sen
Modified DMRG algorithm for the zigzag spin-1/2 chain with frustrated antiferromagnetic exchange: Comparison with field theory at large $J_2/J_1$
Manoranjan Kumar, Zoltan G. Soos, Diptiman Sen +1
A Density Matrix Renormalization Group Method Study of Optical Properties of Porphines and Metalloporphines
Manoranjan Kumar, Y. Anusooya Pati, S. Ramasesha
Variational Monte Carlo and Configurational Interaction Studies of $C_{60}$ and its Fragments
Bhargavi Srinivasan, S. Ramasesha, H. R. Krishnamurthy
The role of triplet states in the emission mechanism of polymer light-emitting diodes
M. Arif, S. Mukhopadhyay, S. Ramasesha +1
Quantum interference in coherent molecular conductance
Julian Rincon, K. Hallberg, S. Ramasesha
Quantum phases of frustrated 2-leg spin-1/2 ladders with skewed rungs
Geetanjali Giri, Dayasindhu Dey, Manoranjan Kumar +2
Estimation of properties of low-lying excited states of Hubbard models : a multi-configurational symmetrized projector quantum Monte Carlo approach
Bhargavi Srinivasan, S. Ramasesha, H. R. Krishnamurthy
Symmetrized DMRG studies of the properties of Low-lying states of Poly-para-phenylene (PPP) system
Y. Anusooya, Swapan K. Pati, S. Ramasesha
Symmetrized PQMC Studies of the ground state of $C_{60}$
Bhargavi Srinivasan, S. Ramasesha, H. R. Krishnamurthy
Full Spin and Spatial Symmetry Adapted Technique for Correlated Electronic Hamiltonians: Application to an Icosahedral Cluster
Shaon Sahoo, S. Ramasesha
Structural Instability in Polyacene : A Projector Quantum Monte Carlo Study
Bhargavi Srinivasan, S. Ramasesha
Structural and Electronic Instabilities in Polyacenes: Density Matrix Renormalization Group Study of a Long--Range Interacting Model
C. Raghu, Y. Anusooya Pati, S. Ramasesha
Model for Triplet State Engineering in Organic Light Emitting Diodes
Suryoday Prodhan, Zoltan G. Soos, S. Ramasesha
Exchange Interaction in Binuclear Complexes with Rare Earth and Copper Ions: A Many-Body Model Study
Indranil Rudra, C. Raghu, S. Ramasesha
Real-time density matrix renormalization group dynamics of spin and charge transport in push-pull polyenes and related systems
Tirthankar Dutta, S. Ramasesha
Dimerization-induced enhancement of the spin gap in the quarter-filled two-leg rectangular ladder
Y. Yan, S. Mazumdar, S. Ramasesha
Theory of Coexisting Charge and Spin-Density Waves in (TMTTF)_2Br, (TMTSF)_2PF_6 and alpha-(BEDT-TTF)_2MHg(SCN)_4
S. Mazumdar, S. Ramasesha, R. T. Clay +1
An Exact Solution of the PPP Model for Correlated Electronic States of Tetracene and Substituted Tetracene
Y. Anusooya Pati, S. Ramasesha
An alternate model for magnetization plateaus in the molecular magnet V_15
Indranil Rudra, S. Ramasesha, Diptiman Sen
Comment on "Triplet-to-Singlet Exciton Formation in poly(p-phenylene-vinylene) Light-Emitting Diodes"
S. Mazumdar, Mousumi Das, S. Ramasesha
Exact Entanglement Studies of Strongly Correlated Systems: Role of Long-Range Interactions and Symmetries of the System
Shaon Sahoo, V. M. L. Durga Prasad Goli, S. Ramasesha +1
Tuning the bond order wave (BOW) phase of half-filled extended Hubbard models
Manoranjan Kumar, S. Ramasesha, Z. G. Soos
Model Exact Low-Lying States and Spin Dynamics in Ferric Wheels; Fe$_6$ to Fe$_{12}$
Indranil Rudra, S. Ramasesha, Diptiman Sen
Microscopic Model for High-spin vs. Low-spin ground state in $[Ni_2{M(CN)_8]}$ ($M=Mo^V, W^V, Nb^{IV}$) magnetic clusters
Rajamani Raghunathan, Jean-Pascal Sutter, Laurent Ducasse +2
The Density Matrix Renormalization Group Studies of Metal-Halogen Chains within a Two-Band Extended Peierls-Hubbard Model
Y. Anusooya, Swapan K Pati, S. Ramasesha
Study of Low-energy States of Clusters of Spin-1/2 and Spin-1 Triangles with Kagome-like Geometries
Indranil Rudra, S. Ramasesha, Diptiman Sen
Double Time Window Targeting Technique: Real time DMRG dynamics in the PPP model
Tirthankar Dutta, S. Ramasesha
Fused Azulenes: Possible Organic Multiferroics
Simil Thomas, S. Ramasesha, Karen Hallberg +1
A comparative study of the phase diagrams of spin-$1 \over 2$ and spin-$1$ antiferromagnetic chains with dimerization and frustration
Swapan Pati, R. Chitra, Diptiman Sen +2
Quantum phases of dimerized and frustrated Heisenberg spin chains with s = 1/2, 1 and 3/2: an entanglement entropy and fidelity study
V. M. L. Durga Prasad Goli, Shaon Sahoo, S. Ramasesha +1
Properties of low-lying states in some high-nuclearity Mn, Fe and V clusters: Exact studies of Heisenberg models
C. Raghu, Indranil Rudra, Diptiman Sen +1
Real Time Dynamics of Hole Propagation in Strongly Correlated Conjugated Molecular Chains: A time-dependent DMRG Study
Tirthankar Dutta, S. Ramasesha
Efficient Density Matrix Renormalization Group algorithm to study Y-Junctions with integer and half-integer spin
Manoranjan Kumar, Aslam Parvej, Simil Thomas +2
Fully Symmetrized VB Based Technique for Solving Exchange Hamiltonians of Molecular Magnets
Shaon Sahoo, Raghunathan Rajamani, S. Ramasesha +1
Effect of dimerization on dynamics of spin-charge separation in Pariser-Parr-Pople model: A time-dependent density matrix renormalization group study
Tirthankar Dutta, S. Ramasesha
A DMRG Study of Low-Energy Excitations and Low-Temperature Properties of Alternating Spin Systems
Swapan K. Pati, S. Ramasesha, Diptiman Sen
Quantum Phase Analysis of Extended Bose-Hubbard Model
Manoranjan Kumar, Sujit Sarkar, S. Ramasesha
DMRG Studies of the Spin-Half Heisenberg System with Dimerization and Frustration
R. Chitra, Swapan K. Pati, H. R. Krishnamurthy +2
Quantum confinement effects on the ordering of the lowest-lying excited states in conjugated chains
Z. Shuai, J. L. Bredas, S. K. Pati +1
Studies on a frustrated Heisenberg spin chain with alternating ferromagnetic and antiferromagnetic exchanges
Shaon Sahoo, V. M. L. Durga Prasad Goli, Diptiman Sen +1
DMRG study of scaling exponents in spin-1/2 Heisenberg chains with dimerization and frustration
Manoranjan Kumar, S. Ramasesha, Diptiman Sen +1