2014 CAP Congress / Congrès de l'ACP 2014

Session

(R1-6) Quantum Information Theory - DTP-DAMOPC-DCMMP / Théorie de l'information quantique - DPT-DPAMPC-DPMCM

R1-6

19 Jun 2014, 08:45

Laurentian University / Université Laurentienne

Conveners

(R1-6) Quantum Information Theory - DTP-DAMOPC-DCMMP / Théorie de l'information quantique - DPT-DPAMPC-DPMCM

• Achim Kempf (U)

45. A fresh look at fundamental properties of quantum information

Prof. Ashwin Nayak (University of Waterloo)

19/06/2014, 08:45

Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)

Invited Speaker / Conférencier invité

We revisit fundamental properties of quantum information in light of a notion in one-shot information theory, namely smooth max-relative entropy. We show how these properties, in particular Strong Subadditivity of von Neumann entropy, follow from intuitive and easy to establish properties of the new notion.

16. Quantum Resource Theories

Gilad Gour (U)

19/06/2014, 09:15

Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)

Invited Speaker / Conférencier invité

Quantum information theory can be viewed as a theory of inter-conversions among different resources. These resources can be classical or quantum, static (like entanglement) or dynamic (like a quantum channel), noisy or noiseless, and therefore give rise to a plethora of quantum information processing tasks. In this talk, I will give an overview on the structure of quantum resource theories and...

326. A cavity-enhanced waveguide quantum memory

Mr Hassan Mallahzadeh (University of Calgary)

19/06/2014, 09:45

Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)

Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)

Communication of quantum information, like its classical counterpart, requires data synchronization. In other words, one must be able to store the information and retrieve it when needed. An optical quantum memory is an interface that stores the information encoded in a photon and recalls it on demand. A promising protocol to implement a practical optical quantum memory is the Atomic Frequency...

91. Weak measurements with an ensemble quantum processor.

Aharon Brodutch (Univesity of Waterloo)

19/06/2014, 10:00

Division of Atomic, Molecular and Optical Physics, Canada / Division de la physique atomique, moléculaire et photonique, Canada (DAMOPC-DPAMPC)

Oral (Non-Student) / orale (non-étudiant)

NMR ensemble quantum processors can be used for implementing a universal quantum circuit with a limited number of qubits using current technologies. The computation is carried out with high fidelity over a large number of processors (individual molecules) in parallel and the readout corresponds to ensemble averages of single-qubit observables. This type of readout poses a obstacle when the...

252. Relativistic enhancement of quantum optical metrology

Aida Ahmadzadegan (University of Waterloo)

19/06/2014, 10:15

Theoretical Physics / Physique théorique (DTP-DPT)

Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)

In this talk, I will explore the applications of relativistic quantum information theory to metrology. By considering the relativistic effects on the transition probability of atoms moving through the optical cavities, we will characterize the perturbations of the general trajectories of an atom. Moreover, since the atom’s transition rate depends on how the detector enters the cavity, we will...