7.7k citations
- City University of New YorkUS288 papers
- The Graduate Center, CUNYUS113 papers
- American Museum of Natural HistoryUS71 papers
- Kirtland Air Force BaseUS50 papers
- Donostia International Physics CenterES44 papers
- U.S. Air Force Research Laboratory Space Vehicles Directorate33 papers
- Slovak Academy of SciencesSK29 papers
- California Institute of TechnologyUS24 papers
- University of New MexicoUS21 papers
- Columbia UniversityUS20 papers
- Université de MontréalCA19 papers
- University of California San DiegoUS18 papers
Showing 1997Show all
3 papers · 1 filter
quant-ph1997★ 181 cited
Quantum copying: A network
V. Buzek, S. L. Braunstein, M. Hillery +1
We present a network consisting of quantum gates which produces two imperfect copies of an arbitrary qubit. The quality of the copies does not depend on the input qubit. We also sh…
quant-ph1997★ 89 cited
Quantum copying: Fundamental inequalities
Mark Hillery, Vladimir Buzek
How well one can copy an arbitrary qubit? To answer this question we consider two arbitrary vectors in a two-dimensional state space and an abstract copying transformation which wi…
quant-ph1997★ 96 cited
Broadcasting of entanglement via local copying
V. Buzek, V. Vedral, M. B. Plenio +2
We show that inseparability of quantum states can be partially broadcasted (copied, cloned) with the help of local operations, i.e. distant parties sharing an entangled pair of spi…