12 citations · 24 across the 10 of their papers we have counts for
5 papers · 1 filter
Reduced State Stabilizer Rényi Entropy as a Probe of Quantum Phase Transitions in Frustrated J_1-J_2 Spin Models
George Biswas, Santanu Sarkar, Jun-Yi Wu +1
We investigate whether the second-order purity-corrected stabilizer Rényi entropy (SRE) of reduced two-qubit density matrices can serve as a reliable local indicator of quantum pha…
Reduced-State Stabilizer Rényi Entropy as a Probe of Quantum Criticality in the Transverse ANNNI Model and the Quantum Compass Model
Santanu Sarkar, George Biswas, Jun-Yi Wu +1
We investigate the effectiveness of the stabilizer Rényi entropy (SRE), a quantifier associated with non-stabilizer resources (quantum magic), as an indicator of quantum phase tran…
Enhanced quantum violation of a non-contextual inequality and witnessing quantum dimension
Ritwija Roy, Anindya Biswas
We consider a non-contextual inequality in the sequential measurement scenario and derive the optimal quantum violation of it without assuming the dimension of the system. Since th…
Fidelity and Entanglement of Random Bipartite Pure States: Insights and Applications
George Biswas, Shao-Hua Hu, Jun-Yi Wu +2
We investigate the fidelity of Haar random bipartite pure states from a fixed reference quantum state and their bipartite entanglement. By plotting the fidelity and entanglement on…
Entanglement in first excited states of some many-body quantum spin systems: indication of quantum phase transition in finite size systems
George Biswas, Anindya Biswas
We compute concurrence, a measure of bipartite entanglement, of the first excited state of the -D Heisenberg frustrated - spin-chain and observe a sudden change in the…