244 citations
- Texas A&M UniversityUS9 papers
- Korea Advanced Institute of Science and TechnologyKR3 papers
- Korea Institute for Advanced StudyKR3 papers
- COMSATS University IslamabadPK2 papers
- Hanyang UniversityKR2 papers
- Laboratoire d'Automatique, de Mécanique et d'Informatique Industrielles et HumainesFR2 papers
- Mitchell InstituteUS2 papers
- The University of QueenslandAU2 papers
- Université Polytechnique Hauts-de-FranceFR2 papers
- Australian National UniversityAU1 paper
- Centre for Quantum Computation and Communication TechnologyAU1 paper
- Centre National de la Recherche ScientifiqueFR1 paper
6 papers · 1 filter
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…
Complete conditions for legitimate Wigner distributions
Hyunchul Nha
Given a real-valued phase-space function, it is a nontrivial task to determine whether it corresponds to a Wigner distribution for a physically acceptable quantum state. This topic…
Optical imaging beyond the diffraction limit via dark states
Hebin Li, Vladimir A. Sautenkov, Michael M. Kash +5
We study the possibility of creating spatial patterns having subwavelength size by using the so-called dark states formed by the interaction between atoms and optical fields. These…
Linear optical scheme to demonstrate genuine multipartite entanglement for single-particle W states
Hyunchul Nha
We consider the method of entanglement witness operator to verify genuine multipartite entanglement for single-particle W states involving N parties. In particular, linear optical…