News
Investigating the impact of a laser’s noise property on qubits
When Institute for Quantum Computing (IQC) Research Associate Matthew Day had his lab temporarily closed during the COVID-19 pandemic, the experimentalist found himself at some loose ends. What’s an experimentalist to do without his equipment? For Day, it was a chance for him to ask questions he’d been thinking about for a while. Specifically, Day wanted to know: how does equipment in the lab affect experiments?
New quantum tool developed in groundbreaking experimental achievement
Scientists recreate properties of light in neutral fundamental particles called neutrons for the first time in experimental history.
New exotic two-dimensional magnet may hold promise for quantum computing
The magnetic properties of an exotic material in the atomically thin two-dimensional limit may lead to future applications in quantum information processing.
Events
quDit entanglement from coherent states by Kerr nonlinearity
IQC Colloquium featuring Professor Jaewan Kim, Professor/Vice-President of Korea Institute for Advanced Study (KIAS), President of Quantum Information Society of Korea (QisK)
A coherent state can be interpreted as a superposition of pseudo-number states with equal weight. Using cross-Kerr nonlinearity two coherent states can be made into a maximal entanglement of pseudo-number states and pseudo-phase states. Some applications of the entanglements of pseudo-number/phase states, such as quDit teleportations, will be discussed.
IQC Student Seminar featuring Amolak Ratan Kalra
Categories of Kirchoff Relations
Abstract: I will be talking about the connections between electrical circuits and stabilizer qudit quantum circuits with an eye towards applications to qudit quantum error correction. More formally I will be defining a category dubbed Kirchhoff relations and characterize the maps in this category using parity check matrices. I will then go on to give a universal set of generators for this category and interpret these generators in-terms of electrical elements.
This is work in progress.
Quantum Perspectives: Simulation
Quantum mechanics is the most successful theory of physics, giving us the rule book to model phenomenon at the sub-microscopic scale. Knowing the rule book doesn’t necessarily mean it’s easy to follow though. Calculating and modelling quantum systems like complex molecules or materials is computationally demanding for modern computers. However, by mimicking the system of interest with another quantum system, we can explore their properties efficiently and learn a great deal about quantum mechanics itself.
