Quantum entanglement is essential to the development of quantum computation,
communications, and technology. The controlled SWAP test, widely used for state …

Ensuring the correct functioning of quantum error correction (QEC) circuits is crucial to
achieve fault tolerance in realistic quantum processors subjected to noise. The first …

Topological quantum error correcting codes have emerged as leading candidates towards
the goal of achieving large-scale fault-tolerant quantum computers. However, quantifying …

Entanglement is a central concept in quantum information and a key resource for many
quantum protocols. In this work we propose and analyze a class of entanglement witnesses …

How best one can recycle a given quantum resource, mitigating the various difficulties
involved in its preparation and preservation, is of considerable importance for ensuring …

In a star-network of qubits interacting via Heisenberg interaction of XYZ-type, we
demonstrate a logarithmic growth of the localizable bipartite peripheral entanglement with …

We investigate the patterns in distributions of localizable entanglement over a pair of qubits
for random multiqubit pure states. We observe that the mean of localizable entanglement …

We study the task of localizing multipartite entanglement in pure quantum states onto a
subsystem by measuring the remaining systems. To this end, we fix a multipartite …

Complete characterization of a noisy multipartite quantum state in terms of entanglement
requires full knowledge of how the entanglement content in the state is affected by the …

We investigate the topological-to-non-topological quantum phase transitions (QPTs)
occurring in the Kitaev code under local perturbations in the form of local magnetic field and …