Generation of gamma-rays carrying orbital angular momentum by inverse Compton scattering

Date: 
October 30, 2017 - 4:00pm
Speaker: 
Yoshitaka Taira
Speaker's Institution: 
National Institute of Advanced Industrial Science and Technology (AIST)

After remarkable work conducted by L.

From Negative Index Metamaterials to Topological Light Sources

Date: 
October 2, 2017 - 4:00pm
Speaker: 
Boubacar Kanté
Speaker's Institution: 
University of California, San Diego

A photonic link for donor spin qubits in silicon”

Date: 
April 19, 2017 - 4:00pm
Speaker: 
Stephanie Simmons
Speaker's Institution: 
Simon Fraser University

Atomically identical donor spin qubits in silicon offer excellent native quantum
properties, which match or outperform many qubit rivals. To scale up such systems it
would be advantageous to connect silicon donor spin qubits in a cavity-QED
architecture. Many proposals in this direction introduce strong electric dipole
interactions to the otherwise largely isolated spin qubit ground state in order to couple
to superconducting cavities. Here I present an alternative approach, which uses the

Discrimination of multiple nonorthogonal states beyond the quantum noise limit

Date: 
April 28, 2017 - 4:00pm
Speaker: 
Francisco Elohim Becerra
Speaker's Institution: 
University of New Mexico

Quantum mechanics sets fundamental limits on how well we can distinguish different states of a physical system with intrinsic quantum noise. This noise sets the ultimate sensitivity limit for conventional coherent communication with coherent states of light, referred to as the quantum-noise limit (QNL).

Special Day and Time

TBD

Speaker: 
Francisco Elohim Becerra
Speaker's Institution: 
Univeristy of New Mexico

Multi-pass microscopy – approaching Heisenberg limited sensitivity in optical and electron microscopy

Date: 
May 1, 2017 - 4:00pm
Speaker: 
Thomas Juffmann
Speaker's Institution: 
Stanford University

The number of biological macromolecules with a structure solved by cryogenic-electron microscopy (cryo-EM) increases dramatically each year. However, many small and weakly scattering protein structures remain out of reach, as electron dose induced specimen damage limits the achievable spatial resolution [1].

A photonic link for donor spin qubits in silicon

Date: 
April 19, 2017 - 4:00pm
Speaker: 
Stephanie Simmons
Speaker's Institution: 
Simon Fraser University

Atomically identical donor spin qubits in silicon offer excellent native
quantum properties, which match or outperform many qubit rivals. To scale up
such systems it would be advantageous to connect silicon donor spin qubits
in a cavity-QED architecture. Many proposals in this direction introduce
strong electric dipole interactions to the otherwise largely isolated spin
qubit ground state in order to couple to superconducting cavities. Here I
present an alternative approach, which uses the built-in strong electric

Special Day and Time

Interlayer Charge Transfer in van der Waals Heterostructures Formed by Transition Metal Dichalcogenide Monolayers

Date: 
April 24, 2017 - 4:00pm
Speaker: 
Frank Ceballos
Speaker's Institution: 
University of Kansas

Strongly driven multi-photon processes in artificial and real systems

Date: 
March 23, 2017 - 4:00pm
Speaker: 
Hossein Z. Jooya
Speaker's Institution: 
University of Kansas

Special Day and Time

Measurement and manipulation of quantum light through non-linear processes

Date: 
May 22, 2017 - 4:00pm
Speaker: 
Markus Allgaier
Speaker's Institution: 
Universität Paderborn

Quantum networks rely heavily on combining different quantum systems
like light sources and quantum memories. These may be composed of very
much incompatible systems like quantum dots, atoms and parametric
down-conversion as well as fiber-based resources. Non-linear processes
such as sum-frequency and difference-frequency generation are a powerful
toolbox to bridge the gap between those systems: They enable us to do
frequency conversion, bandwidth compression and spectral reshaping.

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