45 citations · 675 across the 61 of their papers we have counts for
9 papers · 1 filter
Observing super-quantum correlations across the exceptional point in a single, two-level trapped ion
Alexander Quinn, Jeremy Metzner, Jacob E. Muldoon +5
Quantum theory provides rules governing much of the microscopic world, and among its counter-intuitive consequences are correlations that exceed the bounds from local, classical th…
Multipartite entanglement and quantum error identification in -dimensional cluster states
Sowrabh Sudevan, Daniel Azses, Emanuele G. Dalla Torre +2
An entangled state is said to be -uniform if the reduced density matrix of any qubits is maximally mixed. This is intimately linked to pure quantum error correction codes (Q…
Non-local spin entanglement in a fermionic chain
Sayan Jana, Anant V. Varma, Arijit Saha +1
An effective two-spin density matrix (TSDM) for a pair of spin- degree of freedom, residing at a distance of in a spinful Fermi sea, can be obtained from the two-electron…
Essential role of quantum speed limit in violation of Leggett-Garg inequality across a PT-transition
Anant V. Varma, Jacob E. Muldoon, Sourav Paul +2
We study Leggett-Garg inequality (LGI) of a two level system (TLS) undergoing non-Hermitian dynamics governed by a non-linear Bloch equation (derived in J. Phys. A: Math. Theor. 54…
-qubit states with maximum entanglement across all bipartitions: A graph state approach
Sowrabh Sudevan, Sourin Das
We discuss the construction of -qubit pure states with maximum bipartite entanglement across all possible choices of vs bi-partitioning, which implies that the Von Neu…
Leggett-Garg inequality in Markovian quantum dynamics: role of temporal sequencing of coupling to bath
Sayan Ghosh, Anant V. Varma, Sourin Das
We study Leggett-Garg inequalities (LGIs) for a two level system (TLS) undergoing Markovian dynamics described by unital maps. We find analytic expression of LG parameter (…