18 citations · 52 across the 9 of their papers we have counts for
10 papers
Crystal growth, magnetic, and magnetocaloric properties of J_eff = 1/2 quantum antiferromagnet CeCl_3
Nashra Pistawala, Suman Karmakar, Rajeev Rawat +1
We report growth of high-quality single crystals of CeCl3 using a modified Bridgman Stockbarger method in an infrared image furnace. The grown crystals are characterized using sing…
Any Two Qubit State Has Non Zero Quantum Discord Under Global Unitary Operations
Kaushiki Mukherjee, Biswajit Paul, Sumana Karmakar
Quantum discord is significant in analyzing quantum nonclassicality beyond the paradigm of entanglement. Presently we have explored the effectiveness of global unitary operations i…
Detecting Two Qubit Both-Way Positive Discord States
Kaushiki Mukherjee, Sumana Karmakar, Biswajit Paul +1
Quantum discord plays a pragmatic role in analyzing nonclassical feature of quantum correlations beyond entanglement. It is used in several information processing protocols which l…
Coherence Fraction
Sumana Karmakar, Ajoy Sen, Indrani Chattopadhyay +2
The concept of entanglement fraction is generalized to define coherence fraction of a quantum state. Precisely, it quantifies the proximity of a quantum state to maximally coherent…
Giant negative magnetoresistance and kinetic arrest of first-order ferrimagnetic-antiferomagnetic transition in Ge doped MnSb
Vikram Singh, R Rawat, Pallavi Kushwaha
Effect of Ge substitution on first order ferrimagnetic (FRI) - antiferromagnetic (AFM) transition in MnSb has been studied. It shows that transition temperature (T) can be…
Performance of quantum cloning and deleting machines over coherence
Sumana Karmakar, Ajoy Sen, Debasis Sarkar
Coherence, being at the heart of interference phenomena, is found to be an useful resource in quantum information theory. Here we want to understand quantum coherence under the com…
Detection of Genuine Multipartite Entanglement in Quantum Network Scenario
Biswajit Paul, Kaushiki Mukherjee, Sumana Karmakar +4
Experimental demonstration of entanglement needs to have a precise control of experimentalist over the system on which the measurements are performed as prescribed by an appropriat…
Conditional steering under von-Neumann scenario
Kaushiki Mukherjee, Biswajit Paul, Sumana Karmakar +4
In [\href{http://www.sciencedirect.com/science/article/pii/037596019290711T}{Phys. Lett. A {\bf 166}, 293 (1992)}] Popescu characterized nonlocality of pure -partite entangled s…
On Strong Monogamy Conjecture in Four-Qubit System
Sumana Karmakar, Ajoy Sen, Amit Bhar +1
Monogamy is a defining feature of entanglement, having far reaching applications. Recently, Regula \textit{et.al.} in Phys. Rev. Lett. \textbf{113}, 110501(2014) have proposed a st…
Effect of local filtering on Freezing Phenomena of Quantum Correlation
Sumana Karmakar, Ajoy Sen, Amit Bhar +1
General quantum correlations measures like quantum discord, one norm geometric quantum discord, exhibit freezing, sudden change, double sudden change behavior in their decay rates…