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Spreading Nonlocality in Quantum Network
Ratul Banerjee, Srijon Ghosh, Shiladitya Mal +1
Starting from several copies of bipartite noisy entangled states, we design a global and optimal local measurement-based protocol in one- and two-dimensional lattices by which any…
Sequential measurement-device-independent entanglement detection by multiple observers
Chirag Srivastava, Shiladitya Mal, Aditi Sen De +1
Violation of a Bell inequality certifies that the underlying state must be entangled in a device-independent way, although there may exist some entangled states which do not violat…
Characterizing the boundary of the set of absolutely separable states and their generation via noisy environments
Saronath Halder, Shiladitya Mal, Aditi Sen De
We characterize the boundary of the convex compact set of absolutely separable states, referred as {\bf AS}, that cannot be transformed to entangled states by global unitary operat…
Population inversion and entanglement in single and double glassy Jaynes-Cummings models
Ahana Ghoshal, Sreetama Das, Aditi Sen De +1
We find that a suppression of the collapse and revival of population inversion occurs in response to insertion of Gaussian quenched disorder in atom-cavity interaction strength in…
Robustness of interferometric complementarity under Decoherence
Gautam Sharma, Mohd Asad Siddiqui, Shiladitya Mal +2
Interferometric complementarity is known to be one of the most nonclassical manifestations of the quantum formalism. It is commonly known as wave-particle duality and has been stud…
Response of macroscopic and microscopic dynamical quantifiers to the quantum critical region
Stav Haldar, Saptarshi Roy, Titas Chanda +1
At finite temperatures, the quantum critical region (QCR) emerges as a consequence of the interplay between thermal and quantum fluctuations. We seek for suitable physical quantiti…
Signaling versus distinguishing different superpositions of same pure quantum state
Chirag Srivastava, Sreetama Das, Aditi Sen De +1
Different ensembles of quantum states can have the same average nonpure state. Distinguishing between such constructions, via different mixing procedures of the same nonpure quantu…
One-shot conclusive multiport quantum dense coding capacities
Chirag Srivastava, Anindita Bera, Aditi Sen De +1
We introduce a probabilistic version of the one-shot quantum dense coding protocol in both two- and multiport scenarios, and refer to it as conclusive quantum dense coding. Specifi…