A. R. Usha Devi and Sudha, Spin Squeezing and Quantum Correlations, Asian J. Phys 20,131, arXiv:1101.0308, 2011
Sudha, B. G. Divyamani and A. R. Usha Devi, Loss of exchange symmetry in multiqubit states under Ising chain evolution, Chinese Physics Letters, 28, 020305, 2011
A. K. Rajagopal, A. R. Usha Devi, R. W. Rendell, Kraus representation of quantum evolution and fidelity as manifestations of Markovian and non-Markovian forms, Phys. Rev. A 82, 042107, arxiv.org/pdf/1007.4498, 2010
A R Usha Devi, Sudha, A. K. Rajagopal, Determining the whole pure symmetric N-qubit state from its parts, http://arxiv.org/pdf/1003.2450, 2010
A R Usha Devi, Sudha, A K Rajagopal, Interconvertibility and irreducibility of permutation symmetric three qubit pure states, http://arxiv.org/pdf/1002.2820, 2010
Sumiyoshi Abe, A. R. Usha Devi, A. K. Rajagopal, Thermostatistical aspect of Werner-type states and quantum entanglement, J. Phys. A: Math. Theor. 43, 045303, http://arxiv.org/pdf/0803.1430, 2010
Sudha, A. R. Usha Devi, A. K. Rajagopal, Entropic characterization of separability in Gaussian states, Phys. Rev. A 81, 024303, quant-ph, 2010
A. R. Usha Devi, A. K. Rajagopal, Dynamical evolution of quantum oscillators toward equilibrium, Phys. Rev. E 80, 011136, http://arxiv.org/pdf/0901.1453, 2009
A. R. Usha Devi, A. K. Rajagopal, Quantum target detection using entangled photons, Phys. Rev. A 79, 062320, http://arxiv.org/pdf/0903.3876, 2009
M. Steiner, M. Frey, A. Gulian, R. W. Rendell, A. K. Rajagopal, Measurement of a subsystem of a coupled quantum system, Quantum Information and Computation VII, Proceedings of SPIE, Vol 7342, 2009
A.K. Rajagopal, A. R. Usha Devi, R. W. Rendell, Michael Steiner, Distinctive sub-dynamics features of bipartite systems, arxiv.org/pdf/0807.1672, 2008
L. M. Woods, T. L. Reinecke, A. K. Rajagopal, Electron spin dynamics due to hyperfine coupling in quantum dots, Phys. Rev. B 77, 073313, 2008
A. R. Usha Devi, R. Prabhu, A. K. Rajagopal, A scheme for amplification and discrimination of photons, J. Phys. B: Atomic, Molecular, & Optical Physics, 41, 235501, http://arxiv.org/pdf/0802.2315, 2008
A. R. Usha Devi, A. K. Rajagopal, Generalized Information Theoretic Measure to Discern the Quantumness of Correlations, Phys. Rev. Lett. 100, 140502, http://arxiv.org/pdf/0707.2195, 2008
A. R. Usha Devi, A. K. Rajagopal, Quantum Mechanical Basis of Vision, by Ramakrishna Chakravarthi, Proceedings (Neurons and Cognition) of the India-US Workshop on Science and Technology at the Nabo-Bio Interface, Bhubaneswar, India February 19-22, http://arxiv.org/pdf/0804.0190, 2008
A. R. Usha Devi, A. K. Rajagopal, Separability bounds on multiqubit moments due to positivity under partial transpose, Phys. Rev. A 78, 062334, http://arxiv.org/pdf/0808.2581, 2008
Sudha, A.V. Gopala Rao, A. R. Usha Devi, A.K. Rajagopal, A POVM view of the ensemble approach to polarization optics, J. Opt. Soc. Am. A 25, 874, quant-ph, 2008
A. R. Usha Devi, R. Prabhu, A. K. Rajagopal, Characterizing Multiparticle Entanglement in Symmetric N-Qubit States via Negativity of Covariance Matrices, Phys. Rev. Lett. 98, 060501, http://arxiv.org/pdf/quant-ph/0609055v3.pdf, 2007
A. R. Usha Devi, R. Prabhu, A. K. Rajagopal, Collective multipolelike signatures of entanglement in symmetric N-qubit systems, Phys. Rev. A 76, 012322, http://arxiv.org/pdf/quant-ph/0612210, 2007
A. R. Usha Devi, M. S. Uma, R. Prabhu, A. K. Rajagopal, Constraints on the uncertainties of entangled symmetric qubits, Phys. Lett. A 364, 203, http://arxiv.org/pdf/quant-ph/0601035v4.pdf, 2007
R. Prabhu, A. R. Usha Devi, G. Padmanabha, Separability of a family of one-parameter W and Greenberger-Horne-Zeilinger multiqubit states using the Abe-Rajagopal q-conditional-entropy approach, Phys. Rev. A 76, 042337, http://arxiv.org/pdf/0706.3038, 2007
A. K. Rajagopal, S. D. Mahanti, Sudhanshu S. Jha, Decoherence and fidelity of single-electron spin states in quantum dots: effects of nuclear hyperfine coupling and double occupancy, J. Physics: Condensed Matter 18, 10677, 2006
A. K. Rajagopal, Superstatistics; a quantum generalization, arxiv.org/abs/cond-mat/0608679, 2006