159 citations · 553 across the 17 of their papers we have counts for
15 papers · 1 filter
Low noise quantum frequency conversion of photons from a trapped barium ion to the telecom O-band
Uday Saha, James D. Siverns, John Hannegan +2
Trapped ions are one of the leading candidates for scalable and long-distance quantum networks because of their long qubit coherence time, high fidelity single- and two-qubit gates…
Entanglement between a trapped ion qubit and a 780-nm photon via quantum frequency conversion
John Hannegan, James D. Siverns, Qudsia Quraishi
Future quantum networks will require the ability to produce matter-photon entanglement at photon frequencies not naturally emitted from the matter qubit. This allows for a hybrid n…
Routing Single Photons from a Trapped Ion Using a Photonic Integrated Circuit
Uday Saha, James D. Siverns, John Hannegan +4
Trapped ions are promising candidates for nodes of a scalable quantum network due to their long-lived qubit coherence times and high-fidelity single and two-qubit gates. Future qua…
C-band single photons from a trapped ion via two-stage frequency conversion
John Hannegan, Uday Saha, James D. Siverns +3
Fiber-based quantum networks require photons at telecommunications wavelengths to interconnect qubits separated by long distances. Trapped ions are leading candidates for quantum n…
Improving entanglement generation rates in trapped ion quantum networks using nondestructive photon measurement and storage
John Hannegan, James D. Siverns, Jake Cassell +1
Long range quantum information processing will require the integration of different technologies to form hybrid architectures combining the strengths of multiple quantum systems. I…
Quantum interference between photons from an atomic ensemble and a remote atomic ion
A. N. Craddock, J. Hannegan, D. P. Ornelas-Huerta +6
Advances in the distribution of quantum information will likely require entanglement shared across a hybrid quantum network. Many entanglement protocols require the generation of i…
Demonstration of Slow Light in a Rubidium Vapour Using Single Photons from a Trapped Ion
James D. Siverns, John Hannegan, Qudsia Quraishi
Practical implementation of quantum networks are likely to interface different types of quantum systems. When photonic interconnects link the systems together, they must preserve t…
Dynamic Hamiltonian engineering of 2D rectangular lattices in a one-dimensional ion chain
Fereshteh Rajabi, Sainath Motlakunta, Chung-You Shih +4
Controlling the interaction graph between spins or qubits in a quantum simulator allows user-controlled tailoring of native interactions to achieve a target Hamiltonian. The flexib…
Neutral atom wavelength compatible 780 nm single photons from a trapped ion via quantum frequency conversion
James D. Siverns, John Hannegan, Qudsia Quraishi
Quantum networks consisting of quantum memories and photonic interconnects can be used for entanglement distribution (L.-M.Duan and H. J. Kimble, PRL 90, 253601 (2003), H. J. Kimbl…
Ion trap architectures and new directions
James D. Siverns, Qudsia Quraishi
Trapped ion technology has seen advances in performance, robustness, and versatility over the last decade. With increasing numbers of trapped ion groups world-wide, a myriad of tra…
Ion-photon entanglement and quantum frequency conversion with trapped Ba ions
James D. Siverns, Xiao Li, Qudsia Quraishi
Trapped ions are excellent candidates for quantum nodes, as they possess many desirable features of a network node including long-lifetimes, on-site processing capability and produ…
High teleportation rates using cold-atom ensemble based quantum repeaters with Rydberg blockade
Neal Solmeyer, Xiao Li, Qudsia Quraishi
We present a simplified version of a repeater protocol in a cold neutral-atom ensemble with Rydberg excitations optimized for two-node entanglement generation and describe a protoc…
A Simple and Efficient Absorption Filter for Single Photons from a Cold Atom Quantum Memory
Dan T. Stack, Patricia J. Lee, Qudsia Quraishi
The ability to filter unwanted light signals is critical to the operation of quantum memories based on neutral atom ensembles. Here we demonstrate an efficient frequency filter whi…
Beat note stabilization of mode-locked lasers for quantum information processing
R. Islam, W. C. Campbell, T. Choi +18
We stabilize a chosen radiofrequency beat note between two optical fields derived from the same mode-locked laser pulse train, in order to coherently manipulate quantum information…
Entanglement of Atomic Qubits using an Optical Frequency Comb
D. Hayes, D. N. Matsukevich, P. Maunz +7
We demonstrate the use of an optical frequency comb to coherently control and entangle atomic qubits. A train of off-resonant ultrafast laser pulses is used to efficiently and cohe…