Multi-step quantum secure direct communication using multi-particle Green-Horne-Zeilinger state
, 2006 A multi-step quantum secure direct communication protocol using blocks of multi-particle maximally entangled state is proposed. In this protocol, the particles in a Green-Horne-Zeilinger state are sent from Alice to Bob in batches in several steps.
Beige +21 more
core +1 more source
Analytic Expressions for Geometric Measure of Three Qubit States
, 2008 A new method is developed to derive an algebraic equations for the geometric measure of entanglement of three qubit pure states. The equations are derived explicitly and solved in cases of most interest.
C. H. Bennett +5 more
core +1 more source
Quantum secure direct communication network with superdense coding and decoy photons
, 2007 A quantum secure direct communication network scheme is proposed with quantum superdense coding and decoy photons. The servers on a passive optical network prepare and measure the quantum signal, i.e., a sequence of the $d$-dimensional Bell states. After
Beige A +22 more
core +1 more source
Semi-device-independent certification of entanglement in superdense coding [PDF]
, 2021 George Moreno +4 more
openalex +1 more source
Experimental implementation of a NMR entanglement witness
, 2012 Entanglement witnesses (EW) allow the detection of entanglement in a quantum system, from the measurement of some few observables. They do not require the complete determination of the quantum state, which is regarded as a main advantage.
A.M. Souza +25 more
core +1 more source
Aspects of generic entanglement
, 2004 We study entanglement and other correlation properties of random states in high-dimensional bipartite systems. These correlations are quantified by parameters that are subject to the "concentration of measure" phenomenon, meaning that on a large ...
247 +44 more
core +1 more source
Automated error correction in superdense coding, with implementation on superconducting quantum computer [PDF]
, 2022 Nilesh Kumar +2 more
openalex +1 more source
Unlocking the advantage of qubit communication in multi-node network configurations
New Journal of PhysicsThe extension of point-to-point communication to multi-node configurations has significant applications in internet and telecommunication networks. Quantum resources promise notable advantages in such settings.
Ananya Chakraborty +7 more
doaj +1 more source
Superdense coding using the quantum superposition principle
, 2009 By sending a classical two-level system, one can transfer information about only \emph{two} distinguishable outcomes. Here we show that in quantum mechanics, using both the spin and path degrees of freedom of a spin-1/2 particle, and a Mach-Zehnder type interferometric arrangement with two suitable Stern-Gerlach detectors, it is possible to transfer ...
Home, Dipankar +4 more
openaire +2 more sources
Generating multi-photon W-like states for perfect quantum teleportation and superdense coding [PDF]
, 2016 Ke Li +5 more
openalex +3 more sources