Yasaman Soudagar

Manipulating time-bin qubits with fiber optics components

We propose two experimental schemes to implement arbitrary unitary single qubit operations on single photons encoded in time-bin qubits. Both schemes require fiber optics components that are available with current technology

Mitigating laser damage in glasses and crystals, using pulsetrain-burst (<100 MHz) ultrafast laser processing

Damage to optics caused by lasers may be mitigated by material-processing with ultrafast lasers. Ultrahigh (<100 MHz) repetition-rate pulsetrains afford special control of residual heat. We describe studies in fused silica and crystals.

Experimental Tradeoffs in Quantum Measurement: Uncertainty Relations, Weak Measurement and Quantum Metrology

I will present an overview of several recent and ongoing experiments investigating the limitations on quantum measurement. Was Heisenbergs original limit wrong? When and how is entanglement useful for metrology?

Applications of quantum photonics for communications and metrology

We investigate novel quantum photonic devices and applications in quantum communications and enhanced measurements.

Direct Violation of Heisenberg's Precision Limit by Weak Measurements

We present the first direct experimental violation of Heisenberg’s precision limit. We demonstrate this violation in the polarization of a single photon using weak measurements, implemented by a one-way quantum computing technique.

Demonstration of a loop cluster for quantum information applications

We demonstrate creation of a 4-qubit “loop cluster,” a resource for one-way quantum computation, with one input and two outputs, from a pair of hyperentangled photons. This cluster possesses no flow, but only generalized flow.

Report on an optics outreach program in Montréal

In accordance with its mission, the Student Chapter of the Optical Society of America (OSA) in École Polytechnique de Montréal organises numerous outreach activities to trigger the interest of students 6-17 years of age in optics. In the last two years, these workshops have attracted over 450 students.