346 citations · 940 across the 8 of their papers we have counts for
8 papers
Precise Creation, Characterization, and Manipulation of Single Optical Qubits
Nicholas Peters, Joseph Altepeter, Evan Jeffrey +2
We present the theoretical basis for and experimental verification of arbitrary single-qubit state generation, using the polarization of photons generated via spontaneous parametri…
Synthesizing arbitrary two-photon polarization mixed states
Tzu-Chieh Wei, Joseph B. Altepeter, David Branning +6
Two methods for creating arbitrary two-photon polarization pure states are introduced. Based on these, four schemes for creating two-photon polarization mixed states are proposed a…
Measurement of geometric phase for mixed states using single photon interferometry
Marie Ericsson, Daryl Achilles, Julio T. Barreiro +3
Geometric phase may enable inherently fault-tolerant quantum computation. However, due to potential decoherence effects, it is important to understand how such phases arise for {\i…
Maximally entangled mixed states: Creation and concentration
Nicholas A. Peters, Joseph B. Altepeter, David A. Branning +3
Using correlated photons from parametric downconversion, we extend the boundaries of experimentally accessible two-qubit Hilbert space. Specifically, we have created and characteri…
Ancilla-assisted quantum process tomography
J. B. Altepeter, D. Branning, E. Jeffrey +6
Complete and precise characterization of a quantum dynamical process can be achieved via the method of quantum process tomography. Using a source of correlated photons, we have imp…
Taming Entanglement
Paul Kwiat, Joe Altepeter, David Branning +3
Using a spontaneous parametric-downconversion source of photon pairs, we are working towards the creation of arbitrary 2-qubit quantum states with high fidelity. Currently, all phy…