Quantum router is an essential ingredient in a quantum network. Here, we propose a new
quantum circuit for designing quantum router by using IBM's five-qubit quantum computer …

As quantum key distribution becomes increasingly practical, questions of how to effectively
employ it in large-scale networks and over large distances becomes increasingly important …

In this article we present a benchmark for resource characterization in the process of
controlled quantum state reconstruction and secret sharing for general three-qubit states …

In this work, we point out that the multiparty secret sharing protocol of Tavakoli et al.(Phys
Rev A 92: 030302, 2015) based on a single d-level quantum system (where d is a prime …

Motivated by the need for quantum computers to communicate between multiple, well
separated qubits, we introduce the task of routing the quantum state from one input mode to …

Interconnecting optical photons with superconducting circuits is a challenging problem but
essential for building long-range superconducting quantum networks. We propose a hybrid …

Multi-photon quantum key distribution (QKD) protocols can use non-ideal photon emitters
and yet stay secure. As a result, they are advantageous over other single photon prepare …

Conditional von Neumann entropy is an intriguing concept in quantum information theory. In
the present work, we examine the effect of global unitary operations on the conditional …

A tripartite state is said to be a potential resource for secret sharing if in addition to being
useful for the secret reconstruction (Singh and Chakrabarty in: Phys Rev A 109 (3): 032406 …

In this work we give a (n, n)-threshold protocol for sequential secret sharing of quantum
information for the first time. By sequential secret sharing we refer to a situation where the …