Staff

Robin Kothari

We provide a quantum algorithm for simulating the
dynamics of sparse Hamiltonians with complexity sublogarithmic in
the inverse error, an exponential improvement over previous methods.
Unlike previous approaches based on product formulas, the query
complexity is independent of the number of qubits acted on, and for
time-varying Hamiltonians, the gate complexity is logarithmic in the
norm of the derivative of the Hamiltonian. Our algorithm is based on
a significantly improved simulation of the continuous- and

Takashi Imai, McMaster University

NMR (Nuclear Magnetic Resonance) is a versatile probe of condensed matter, and has a broad range of applications in chemistry, medicine (MRI), oil industry, etc. NMR has become so popular outside the conventional realm of physics that the crucial role NMR has been playing in condensed matter physics is sometimes overlooked. I will explain how condensed matter physicists use NMR as a powerful low energy probe of solids, drawing examples from modern research into statistical physics, magnetism, and superconductivity.

Jingyun Fan, National Institute of Standards and Technology

Measurements based on the quantum properties of physical system have enabled many tasks which are not possible by any classical means. In this talk, I introduce two quantum receivers that discriminate nonorthogonal optical coherent states unconditionally surpassing the standard quantum limit, with mean photon numbers ranging from single photon level to many photons, thus bridging the gap between quantum information technology and state-of-the art coherent communications.

The Institute for Quantum Computing's (IQC) Grad Student Association  is screening the 7 Academy Award winning movie Gravity on April 2nd at 7 pm. The event will be followed by a short presentation and Q&A with IQC's  associate member, astronaut, and former Canadian Space Agency president Steve MacLean.

From invisibility cloaks to teleportation, Harry Potter’s world is filled with mystery and wonder. Yet this magical world is not so different from the world we inhabit. Just beneath the surface of our ordinary lives is a strange quantum reality.