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20 papers · 1 filter
Constructions of Subsystem Codes over Finite Fields
Salah A. Aly, Andreas Klappenecker
Subsystem codes protect quantum information by encoding it in a tensor factor of a subspace of the physical state space. Subsystem codes generalize all major quantum error protecti…
Quantum stabilizer codes and beyond
Pradeep Kiran Sarvepalli
The importance of quantum error correction in paving the way to build a practical quantum computer is no longer in doubt. This dissertation makes a threefold contribution to the ma…
Fast-Light in a Photorefractive Crystal for Gravitational Wave Detection
H. N. Yum, M. Salit, G. S. Pati +3
We demonstrate superluminal light propagation using two frequency multiplexed pump beams to produce a gain doublet in a photorefractive crystal of Ce:BaTiO3. The two gain lines are…
Quantum Interferences in Cooperative Dicke Emission from Spatial Variation of Laser Phase
Sumanta Das, G. S. Agarwal, Marlan O. Scully
We report generation of a new quantum interference effect in spontaneous emission from a resonantly driven system of two identical two-level atoms due to the spatial variation of t…
Intensity correlations in resonance nonlinear magneto-optical rotation
Tigran S. Varzhapetyan, Hebin Li, Gombojav O. Ariunbold +3
We have studied the intensity correlations between two orthogonally linearly polarized components of a laser field propagating through a resonant atomic medium. These experiments h…
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…