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• Sudha, K.S.Akhilesh, B.G.Divyamani, A.R. Usha Devi and K.S. Mallesh, Monogamous nature of Dicke-class of states with two distinct Majorana spinors , Quantum Information Processing, 19, 35(1)—35(19), 2020

  
  
  

• K.S.Akhilesh, B.G.Divyamani, Sudha, A.R. Usha Devi and K.S. Mallesh, Spin Squeezing in symmetric multiqubit states with two non-orthogonal spinors, Quantum Information Processing, 18, 144(1)—144(15), 2019

  
  
  

• K.S.Akhilesh, K.S.Mallesh, Sudha and Praveen G. Hegde, Spin squeezing in Dicke-class of states with non-orthogonal
  Spinors, Chinese Physics B, 28, Issue No. 6, 060302(1)—060302(6) , 2019

  
  
  

• Asha K, Adwaith K.V, Pradosh K.Nayak, Sudha, Barry C. Sanders, Fabien Bretenaker, Andal Narayanan, Phase sensitive amplification of an optical field using Microwaves, Optics Express, 27, No.22/28 32111—32121, 2019

  
  
  

• Anantha S. Nayak, Sudha, A. R. Usha Devi and A. K. Rajagopal, One parameter Family of Werner-Popescu states: Bipartite Separability using Conditional Quantum Relative Tsallis Entropy, Journal of Quantum Information Science, Vol 8, 12–23 , arXiv:1712.00746, 2018

  
  
  

• H.S. Karthik, A.R. Usha Devi, J. Prabhu Tej, A. K. Rajagopal, Sudha and A. Narayanan, N-term pairwise-correlation inequalities, steering, and joint measurability , Physical Review A, 95, 052105 , 2017

  
  
  

• P.J. Geetha, Sudha and K.S. Mallesh, Comparitive analysis of entanglement measures based on monogamy inequality, Chin.Phys.B, Vol.26, No.5, 050301, 2017

  
  
  

• Anantha S Nayak, Sudha, A.R. Usha Devi, A.K. Rajagopal, Biseparability of noisy pseudopure, W and GHZ states using conditional quantum relative Tsallis entropy, Quantum Inf Process 16, 51, https://doi.org/10.1007/s11128-016-1491-9, arXiv:1610.04540, 2017

  
  
  

• Divyamani B.G, Sudha and A.R. Usha Devi, Local Unitary Invariant Spin-Squeezing in Multiqubit States , International Journal of Theoretical Physics, Vol. 55, No. 5, 2324–233, 2016

  
  
  

• Anantha S. Nayak, Sudha, A. K. Rajagopal and A.R. Usha Devi, Bipartite separability of symmetric N-qubit noisy states using
  conditional quantum relative Tsallis entropy, Physica A, 443, 286–295 , 2016

  
  
  

• R. Rangarajan, G. Rajasekaran, S.V.M. Satyanarayana, M. Sivakumar and Sudha, Physics Training and Talent Search Programme—Meeting Report, Current Science, 111, No. 3, 10-11 , 2016

  
  
  

• P.J. Geetha, K. O. Yashodamma, and Sudha, Monogamous nature of symmetric N-qubit states of the W class: Concurrence and negativity tangle, Chin.Phys.B Vol.24, No.11, 110302, 2015

  
  
  

• J. Prabhu Tej, H.S. Karthik, A.R. Usha Devi, Sudha and A.K. Rajagopal, Quantum which-way information and fringe visibility when the detector is entangled with an ancilla , Physical Review A, 89, 062116, 2014

  
  
  

• A.K. Rajagopal, Sudha, Anantha S Nayak, A.R. Usha Devi, From the sandwiched quantum relative Tsallis entropy to its conditional form: Separability criterion beyond local and global spectra, Phys. Rev. A, 89, 012331, arXiv:1309.6944, 2014

  
  
  

• K. O. Yashodamma, P.J. Geetha and Sudha, Purification and redistribution of entanglement via single local filtering , International Journal of Quantum Information, 1, 145004, 2014

  
  
  

• K. O. Yashodamma, P.J. Geetha and Sudha, Effectiveness of depolarizing noise in causing sudden death of entanglement , Quantum Information Processing, 13, 2551 , 2014

  
  
  

• P.J. Geetha, Sudha and A.R. Usha Devi , What Does Monogamy in Higher Powers of a Correlation Measure Mean? , Journal of Modern Physics, 5, 1294, 2014

  
  
  

• A. K. Rajagopal, Sudha, Anantha S. Nayak and A.R. Usha Devi, From the quantum relative Tsallis entropy to its conditional form: Separability criterion beyond local and global spectra, Physical Review A, 89, 012331 , 2013

  
  
  

• K. O. Yashodamma and Sudha, Is composite noise necessary for sudden death of entanglement? , Results in Physics 3, 41-45 , 2013

  
  
  

• B.G. Divyamani and Sudha, Thermal Entanglement in a Two-qubit Ising chain subjected to Dzyaloshinsky-Moriya Interaction , Chinese Physics Letters 30, 120301 , 2013

  
  
  

• A.R. Usha Devi, A. K. Rajagopal, Sudha, H. S. Karthik and J. Prabhu Tej, Equivalence of classicality and separability based on P phase–space representation of symmetric multiqubit states , Quantum Information Processing, 12, 3717-3723 , 2013

  
  
  

• A. R. Usha Devi, Sudha, R. W. Rendell, Interplay of quantum stochastic and dynamical maps to discern markovianity, J. Qu. Info. Sci.,2, 47, quant-ph, 2012

  
  
  

• A. R. Usha Devi, H. S. Karthik, Sudha, A. K. Rajagopal, Macrorealism from entropic Leggett-Garg inequalities, PRA 87, 052103 (2013), quant-ph, 2012

  
  
  

• Sudha, A. R. Usha Devi, A. K. Rajagopal, Monogamy of quantum correlations in three qubit pure states using Rajagopal-Rendell quantum deficit, Phys. Rev. A85 012103, quant-ph, 2012

  
  
  

• Arun Kumar Pati, Mark M. Wilde, A. R. Usha Devi, A. K. Rajagopal, Sudha, Quantum discord and classical correlation can tighten the uncertainty principle in the presence of quantum memory, Phys. Rev. A 86, 042105, quant-ph, 2012

  
  
  

• A.R. Usha Devi, Sudha, A.K.Rajagopal, Majorana representation of symmetric multiqubit states, Quantum Information Processing, Vol. 11, Issue 3, pp 685-710 (2012), quant-ph, 2011

  
  
  

• A. R. Usha Devi, A. K. Rajagopal, Sudha, Open-system quantum dynamics with correlated initial states, not completely positive maps, and non-Markovianity, Phys. Rev. A 83, 022109, quant-ph, 2011

  
  
  

• A. R. Usha Devi, A. K. Rajagopal, Sudha, Quantum dynamical maps and Markovianity, quant-ph, 2011

  
  
  

• A. R. Usha Devi, A. K. Rajagopal, Sudha, Quantumness of correlations and entanglement, Int. J. Quantum Inform. 09, 1757, quant-ph, 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. R. Usha Devi and Sudha, Spin Squeezing and Quantum Correlations, Asian J. Phys 20,131 (2011), arXiv:1101.0308, 2011

  
  
  

• A R Usha Devi, Sudha, A. K. Rajagopal, Determining the whole pure symmetric N-qubit state from its parts, quant-ph, 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, Sudha, A K Rajagopal, Interconvertibility and irreducibility of permutation symmetric three qubit pure states, quant-ph, 2010

  
  
  

• 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