MC, 200 University Ave West, Room MC 5417
Waterloo, ON CA N2L 3G1
Supervisors: Thomas Jennewein and Norbert Lütkenhaus
Today, the UN has proclaimed 2025 as the International Year of Quantum Science and Technology (IYQ). The year-long, worldwide initiative aims to celebrate the contributions of quantum science to technological progress over the past century, raise global awareness of its importance to sustainable development in the 21st century, and ensure that all nations, including Canada, have access to quantum education and opportunities.
Quantum-Nano Centre, 200 University Ave West, Room QNC 1201 Waterloo, ON CA N2L 3G1
The entanglement structure of quantum fields is of central importance in various aspects of the connection between spacetime geometry and quantum field theory. However, it is challenging to quantify entanglement between complementary regions of a quantum field theory due to the formally infinite amount of entanglement present at short distances. We present an operationally motivated way of analyzing entanglement in a QFT by considering the entanglement which can be transferred to a set of local probes coupled to the field. In particular, using a lattice approximation to the field theory, we show how to optimize the coupling of the local probes with the field in a given region to most accurately capture the original entanglement present between that region and its complement. This coupling prescription establishes a bound on the entanglement between complementary regions that can be extracted to probes with finitely many degrees of freedom.
Based on: J. High Energ. Phys. 2023, 58 (2023), arXiv:2301.08775
The Institute for Quantum Computing (IQC) is proud to congratulate Sarah Odinotski, a PhD student in IQC and Department of Electrical and Computer Engineering at the University of Waterloo, for being selected as a Vanier Scholar this year.
The Institute for Quantum Computing (IQC) is proud to congratulate Caroline de Lima Vargas Simões, a PhD student in IQC and Department of Physics and Astronomy at the University of Waterloo, for being selected as a Vanier Scholar this year.
The Institute for Quantum Computing (IQC) is proud to congratulate Jack deGooyer, a PhD student in IQC and Department of Electrical and Computer Engineering at the University of Waterloo, for being selected as a Vanier Scholar this year.
The QKD security proof workshop is an annual workshop series focused on technical security proofs. Our focus in the workshop is to facilitate interactions and discussions between participants.
The Institute for Quantum Computing (IQC) is proud to congratulate Jack deGooyer, Caroline de Lima Vargas Simões and Sarah Odinotski, IQC PhD students who were awarded the 2024 Vanier Scholarship, one of the most competitive and prestigious scholarships available in Canada for PhD students.
Quantum-Nano Centre, 200 University Ave West, Room QNC 0101 Waterloo, ON CA N2L 3G1
: Quantum compiling translates a quantum algorithm into a sequence of elementary operations. There exists a correspondence between certain quantum circuits and matrices over some number rings. This number-theoretic perspective reveals important properties of gate sets and leads to improved quantum compiling protocols. Here, we demonstrate several algebraic methods in quantum circuit characterization and optimization, based on my master’s research at IQC.
First, we design two improved synthesis algorithms for Toffoli-Hadamard circuits, achieving an exponential reduction in circuit size. Second, we define a unique normal form for qutrit Clifford operators. This allows us to find a set of relations that suffice to rewrite any qutrit Clifford circuit to its normal form, adding to the family of number-theoretic characterization of quantum operators.
The Institute for Quantum Computing (IQC) at the University of Waterloo is pleased to congratulate IQC Canada Inc., for receiving $18.4 M in funding from Innovation, Science and Economic Development Canada’s Strategic Science Fund (SSF). The fund aims to mobilize the expertise and resources of independent, third-party science and research organizations to enhance Canada’s science technology and innovation excellence.