244 citations
- Texas A&M UniversityUS5 papers
- COMSATS University IslamabadPK2 papers
- Australian National UniversityAU1 paper
- Centre National de la Recherche ScientifiqueFR1 paper
- École Supérieure des TélécommunicationsMA1 paper
- Hanyang UniversityKR1 paper
- Institut de Mathématiques de BordeauxFR1 paper
- Korea Advanced Institute of Science and TechnologyKR1 paper
- Laboratoire Charles FabryFR1 paper
- Laboratoire Traitement et Communication de l’InformationFR1 paper
- Lake Forest CollegeUS1 paper
- Max Planck Institute for Nuclear PhysicsDE1 paper
13 papers · 1 filter
Coherent-state optical qudit cluster state generation and teleportation via homodyne detection
Jaewan Kim, Juhui Lee, Se-Wan Ji +3
Defining a computational basis of pseudo-number states, we interpret a coherent state of large amplitude, , as a qudit --- a -level quantum system --- in a s…
Loophole-free Bell test for continuous variables via wave and particle correlations
Se-Wan Ji, Jaewan Kim, Hai-Woong Lee +2
We derive two classes of multi-mode Bell inequalities under local realistic assumptions, which are violated only by the entangled states negative under partial transposition in acc…
Linear amplification and quantum cloning for non-Gaussian continuous variables
Hyunchul Nha, G. J. Milburn, H. J. Carmichael
We investigate phase-insensitive linear amplification at the quantum limit for single- and two-mode states and show that there exists a broad class of non-Gaussian states whose non…
Entanglement of Gaussian states using beam splitter
Rabia Tahira, Manzoor Ikram, Hyunchul Nha +1
We study an experimental scheme to generate Gaussian two-mode entangled states via beam splitter. Specifically, we consider a nonclassical Gaussian state (squeezed state) and a the…
Uncertainty inequalities as entanglement criteria for negative partial-transpose states
Hyunchul Nha, M. Suhail Zubairy
In this Letter, we show that the fulfillment of uncertainty relations is a sufficient criterion for a quantum-mechanically permissible state. We specifically construct two pseudo-s…
Proposal for direct measurement of concurrence via visibility in a cavity QED system
Sang Min Lee, Se-Wan Ji, Hai-Woong Lee +1
An experimental scheme is proposed that allows direct measurement of the concurrence of a two-qubit cavity system. It is based on the cavity-QED technology using atoms as flying qu…