QUANTUMNESS OF CORRELATIONS AND ENTANGLEMENT

Sudha , A. K. Rajagopal , A. R. Usha Devi
International Journal of Quantum Information 09 1757 -1771

7
2011
Loss of Exchange Symmetry in Multiqubit States under Ising Chain Evolution

Sudha , B. G. Divyamani , A. R. Usha Devi
Chinese Physics Letters 28 ( 2) 020305

1
2011
Non-classicality of photon added coherent and thermal radiations

M. S. Uma , A. R. Usha Devi , R. Prabhu
European Physical Journal D 40 ( 1) 133 -138

38
2006
From quantum stochastic differential equations to Gisin-Percival state diffusion

A. R. Usha Devi , K. R. Parthasarathy
Journal of Mathematical Physics 58 ( 8) 082204

2
2017
Spin squeezing in symmetric multiqubit states with two non-orthogonal Majorana spinors

Sudha , K. S. Mallesh , B. G. Divyamani , A. R. Usha Devi
Quantum Information Processing 18 ( 5) 144

2
2019
Monogamy Inequality in Terms of Higher Powers of a Correlation Measure: An Analysis

Sudha , P. J. Geetha , A. R. Usha Devi
Book Publisher International (a part of SCIENCEDOMAIN International) 39 -53

2021
Entanglement detection in permutation symmetric states based on violation of local sum uncertainty relation.

Sudha , H. S. Karthik , J. Prabhu Tej , A. K. Rajagopal
arXiv: Quantum Physics

2021
Sum Uncertainty Relations: Uncertainty Regions for Qubits and Qutrits

Sudha , A. K. Rajagopal , A. R. Usha Devi , Seeta Vasudevrao
International Journal of Theoretical Physics 60 ( 4) 1523 -1538

2021
Leggett-Garg inequalities and temporal correlations for a qubit under PT -symmetric dynamics

A. R. Usha Devi , H. S. Karthik , H. Akshata Shenoy
Physical Review A 103 ( 3) 032420

2021
Characterizing nonlocality of pure symmetric three-qubit states

Sudha , A. R. Usha Devi , Akshata Shenoy Hejamadi , K. Anjali
Quantum Information Processing 20 ( 5) 1 -22

2021
Collective multipolelike signatures of entanglement in symmetric N -qubit systems

A. R. Usha Devi , R. Prabhu , A. K. Rajagopal
Physical Review A 76 ( 1) 012322

8
2007
Generalized information theoretic measure to discern the quantumness of correlations.

A. R. Usha Devi , A. K. Rajagopal
Physical Review Letters 100 ( 14) 140502 -140502

54
2008
One Parameter Family of N-Qudit Werner-Popescu States: Bipartite Separability Using Conditional Quantum Relative Tsallis Entropy

Anantha S. Nayak , Sudha   , A. R. Usha Devi , A. K. Rajagopal
Journal of Quantum Information Science 08 ( 1) 12 -23

1
2018
Entropic characterization of separability in Gaussian states

Sudha , A. R. Usha Devi , A. K. Rajagopal
Physical Review A 81 ( 2) 024303

6
2010
Non-Markovianity and Clauser-Horne-Shimony-Holt (CHSH)-Bell inequality violation in quantum dissipative systems.

A. Thilagam , A. R. Usha Devi
Journal of Chemical Physics 137 ( 21) 215103 -215103

4
2012
Unsharp Measurements and Joint Measurability

H. S. Karthik , A. R. Usha Devi , A. K. Rajagopal
Current Science 109 ( 11) 2061 -2068

1
2015
Majorana representation of symmetric multiqubit states

A. R. Usha Devi , Sudha , A. K. Rajagopal
Quantum Information Processing 11 ( 3) 685 -710

51
2012
Biseparability of noisy pseudopure, W and GHZ states using conditional quantum relative Tsallis entropy

Anantha S. Nayak , Sudha , A. R. Usha Devi , A. K. Rajagopal
Quantum Information Processing 16 ( 2) 1 -12

2
2017
Trivariate Quasiprobability Distributions for Polarized Spin-1 Nuclei

A. R. Usha Devi , Swarnamala Sirsi , G. Ramachandran , P. Devi
International Journal of Modern Physics A 12 ( 15) 2779 -2790

3
1997