Pulsed squeezed light: Simultaneous squeezing of multiple modes
Physical Review A American Physical Society (APS) 73:6 (2006) 063819
Raman adiabatic transfer of optical states in multilevel atoms
Physical Review A American Physical Society (APS) 73:1 (2006) 013804
Interconvertibility of single-rail optical qubits.
Optics letters 31:1 (2006) 107-109
Abstract:
We show how to convert between partially coherent superpositions of a single photon with the vacuum by using linear optics and postselection based on homodyne measurements. We introduce a generalized quantum efficiency for such states and show that any conversion that decreases this quantity is possible. We also prove that our scheme is optimal by showing that no linear optical scheme with generalized conditional measurements, and with one single-rail qubit input, can improve the generalized efficiency.Single-qubit optical quantum fingerprinting.
Physical review letters 95:15 (2005) 150502
Abstract:
We analyze and demonstrate the feasibility and superiority of linear optical single-qubit fingerprinting over its classical counterpart. For one-qubit fingerprinting of two-bit messages, we prepare "tetrahedral" qubit states experimentally and show that they meet the requirements for quantum fingerprinting to exceed the classical capability. We prove that shared entanglement permits 100% reliable quantum fingerprinting, which will outperform classical fingerprinting even with arbitrary amounts of shared randomness.Classical and quantum fingerprinting with shared randomness and one-sided error
Quantum Information and Computation Rinton Press 5:3 (2005) 258-271