143 citations · 1.3k across the 50 of their papers we have counts for
4 papers · 1 filter
Multipartite entanglement at dynamical quantum phase transitions with non-uniformly spaced criticalities
Stav Haldar, Saptarshi Roy, Titas Chanda +2
We report dynamical quantum phase transition portrait in the alternating field transverse XY spin chain with Dzyaloshinskii-Moriya interaction by investigating singularities in the…
Universality in Distribution of Monogamy Scores for Random Multiqubit Pure States
Soorya Rethinasamy, Saptarshi Roy, Titas Chanda +2
Monogamy of quantum correlations provides a way to study restrictions on their sharability in multiparty systems. We find the critical exponent of these measures, above which rando…
Response in violation of Bell inequality to imperfect photon addition and subtraction in noisy squeezed states of light
Saptarshi Roy, Titas Chanda, Tamoghna Das +2
Violation of Bell inequality is a prominent detection method for quantum correlations present in composite quantum systems, both in finite and infinite dimensions. We investigate t…
Canonical Leggett-Garg Inequality: Nonclassicality of temporal quantum correlations under energy constraint
Titas Chanda, Tamoghna Das, Shiladitya Mal +2
Nonclassicality of temporal correlations pertaining to noncommutative sequential measurements is defined through the violation of macrorealistic inequalities, known as Leggett-Garg…