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Monday, May 27, 2019
Location: Wisconsin Center - 202C
DAMOP offers a graduate student symposium in conjunction with the DAMOP Meeting. While aimed primarily at graduate students, the symposium is open to all students and post-docs.
Includes presentations, lunch, and refreshments.
Deadline: Friday, May 17
Pre-registration for the Graduate Student Symposium is strongly encouraged. Space is limited. You must register for the symposium online when you register for the DAMOP Meeting.
|8:55 a.m.||Welcome and Introductions|
|9:00 a.m.||Quantum Simulator Package (QuSP): A Robust and Flexible Integrated Modeling Environment for Entangled Quantum Dynamics
Lincoln Carr, Colorado School of Mines
Speaker Abstract: The popular press has presented exciting near-term possibilities for building digital quantum computers based on qubits, quantum gates and quantum circuits that out compute any classical computer. However, there are in fact already several hundred working analog quantum computers based on time-evolving many-body quantum states under Hamiltonians in continuous time. Many of these computational platforms are built on decades of experimental and theoretical advances in atomic, molecular, and optical physics, and can be viewed as high precision many-body experiments. For instance, the 2003 discovery of the unitary quantum gas corrected 50 years of many-body quantum theory on the fundamental question of how fermions pair to make bosons. Classical computers have continued to play a role in pushing forward these experiments, both in experimental design and in determining the limits of classical computation to model quantum dynamical phenomena, such as entanglement in many-body quantum chaos and the continuous-time generalization of quantum cellular automata. In this talk, I will present our open source quantum simulator package (QuSP), which runs on classical computers such as a laptop or high-performance computing cluster. QuSP has been downloaded over 3000 times and is used in many labs and research groups worldwide. Recently, together with the Science Gateways Community Institute (SGCI), we have built an even more accessible interface, a browser-based science gateway. Thus, whether computationally experienced scientists or just beginning to acquire key life skills in computation, both experimental and theoretical students will leave this graduate student symposium with a new set of tools they can use in their research on quantum simulators, aka analog quantum computers.
Symposium participants are encouraged to bring their laptops and to download and install QuSP prior to the symposium.
|10:15 a.m.||Coffee Break|
|10:45 a.m.||Quantum Engineering with Atoms and Photons
Monika Schleier-Smith, Stanford University
Speaker Abstract: The dream of the quantum engineer is for every physics lab to have an “arbitrary waveform generator” for designing quantum states and Hamiltonians. Atoms in optical cavities offer fertile ground for making progress towards this vision, providing versatility for controlling long-range spin interactions via laser fields. I will give a pedagogical overview of recent work on engineering atom-light interactions for applications in quantum simulation and quantum metrology, highlighting the vital role played by a close interplay of experiment and theory.
|12:45 p.m.||Semi-classical & Quantum View of an Intense Laser-atom Interaction
Louis DiMauro, Department of Physics, The Ohio State University, Columbus, OH
Speaker Abstract: The study of an intense laser field interacting with an atom is a fundamental problem in AMO physics. The study of strong-field physics has advanced to a state that quantitative tests of theoretical models are now possible experimentally. This is particularly important to identify the universality of all strong-field phenomena, such as above-threshold ionization (ATI), high harmonic generation and multiple ionization. In this talk, a review of laser-atom interaction will be given and discussed in the context of a semi-classical model of a field-driven electron interacting with its parent core. Experiments will be presented which illustrate the appropriateness of the semi-classical description, the scaling with laser parameters and the physics associated with the formation of light pulses on the atomic time scale (attosecond).
|2:00 p.m.||Coffee Break|
|2:30 p.m.||Collective Dynamics of Atomic Ensembles Due to Long-range Optomechanical Forces
Giovanna Morigi, Saarland University, Saarbruecken, Germany
Speaker Abstract: In this talk we will present recent theoretical work on cooling and spontaneous spatio-temporal pattern formation of atomic and molecular ensembles in optical resonators, where the key ingredient of the dynamics are the coherent and dissipative long-range optomechanical forces mediated by multiple scattering of the cavity photons. These dynamics reveal the existence of prethermalized states which are expected to be stable over the experimental time scales even in the bad cavity limit. We characterize the properties of these metastable phases in the semiclassical and deep in the quantum regime.