JILA Science Seminar

Talk may be moved to JILA Auditorium if X590 is not large enough to accomodate all attendees.

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Abstract:

Abstract:

Emitters of quantum light are at the core of quantum optic science and a key resource for emerging classical and quantum technologies. Yet, to date, the tools available to study multiple-photon quantum light sources, specifically temporally and spectrally in parallel, have been limited. A prominent example is multiply-excited semiconductor quantum dots - an intriguing system that features rich physics and technological potential but lacks direct observation techniques. 

Out-of-equilibrium dynamics of isolated quantum many-body systems is generally intractable. In chaotic quantum systems, however, local observables rapidly relax to their equilibrium values. Hence, simple translationally-invariant initial states are expected to quickly reach thermal equilibrium for local expectation values. The equilibration of fluctuations on the other hand goes beyond standard thermalization and is expected to happen on much longer timescales, since their approach to equilibrium is limited by the hydrodynamic build-up of large-scale fluctuations.

Abstract: Silicon Vacancy (SiV) centers in diamond coupled to nanophotonic cavities offer a promising platform for quantum communication. Our system utilizes long coherence times, high optical cooperativities, and on-chip scalability, providing a unique path to the practical implementation of long-distance quantum networking.

Abtract: A key question for platforms realizing quantum computation, simulation and communication is: How can we grow the size of a quantum system, while keeping high fidelities of single operations?

Abstract: One-dimensional systems exhibiting a continuous symmetry can host quantum phases of matter with true long-range order only in the presence of sufficiently long-range interactions. In most physical systems, however, the interactions are short-ranged, hindering the emergence of such phases in one dimension.

Abstract: Rydberg atom arrays have emerged as a promising candidate for quantum computation. However, scaling up the platform beyond a few thousand qubits would require a modular approach. An integrated optical cavity could serve as a quantum networking node between distant quantum processors. In this talk, I will show our results towards this integration for two candidate platforms: a nano-photonic crystal cavity (PCC) and a Fabry-Perot Fiber cavity (FPFC). In our lab, we have already demonstrated all the necessary quantum networking capabilities of the PCC for ground-state atoms.

Abstract:

Klaus Mølmer, one of our current Visiting Fellows, will be giving a talk on Tuesday, 4/25 at 2 pm in the JILA Auditorium. Please mark your calendars and come hear about Dr. Mølmer’s work! There will also be a reception with cake in the h-bar (3^rd floor, X-wing) following the talk.