212 citations
- Centre National de la Recherche ScientifiqueFR5 papers
- California Institute of TechnologyUS3 papers
- Fleet Science CenterUS2 papers
- Johannes Gutenberg University MainzDE2 papers
- Princeton UniversityUS2 papers
- Rockefeller UniversityUS2 papers
- Stony Brook UniversityUS2 papers
- Université de SherbrookeCA2 papers
- University of Notre DameUS2 papers
- University of OxfordGB2 papers
- University of VirginiaUS2 papers
- Ames National LaboratoryUS1 paper
17 papers · 1 filter
Holonomic quantum computation in decoherence-free subspaces
L. -A. Wu, P. Zanardi, D. A. Lidar
We show how to realize, by means of non-abelian quantum holonomies, a set of universal quantum gates acting on decoherence-free subspaces and subsystems. In this manner we bring to…
Theory of Initialization-Free Decoherence-Free Subspaces and Subsystems
A. Shabani, D. A. Lidar
We introduce a generalized theory of decoherence-free subspaces and subsystems (DFSs), which do not require accurate initialization. We derive a new set of conditions for the exist…
Security of Quantum Key Distribution with Realistic Devices
Xiongfeng Ma
We simulate quantum key distribution (QKD) experimental setups and give out some improvement for QKD procedures. A new data post-processing protocol is introduced, mainly including…
Encoding a qubit into multilevel subspaces
Matthew Grace, Constantin Brif, Herschel Rabitz +3
We present a formalism for encoding the logical basis of a qubit into subspaces of multiple physical levels. The need for this multilevel encoding arises naturally in situations wh…
Robustness of multi-qubit entanglement in the independent decoherence model
Somshubhro Bandyopadhyay, Daniel A. Lidar
We study the robustness of the GHZ (or ``cat'') class of multi-partite states under decoherence. The noise model is described by a general completely positive map for qubits indepe…
Fault-Tolerant Quantum Dynamical Decoupling
K. Khodjasteh, D. A. Lidar
Dynamical decoupling pulse sequences have been used to extend coherence times in quantum systems ever since the discovery of the spin-echo effect. Here we introduce a method of rec…