Bulletin of the American Physical Society
48th Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics
Volume 62, Number 8
Monday–Friday, June 5–9, 2017; Sacramento, California
Session 1A: Graduate Student Symposium on Quantum InformationInvited
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Room: 308 |
Monday, June 5, 2017 8:30AM - 8:55AM |
1A.00001: Sign In |
Monday, June 5, 2017 8:55AM - 9:00AM |
1A.00002: Welcome |
Monday, June 5, 2017 9:00AM - 10:15AM |
1A.00003: Exploring Quantum Physics with Trapped Ions Invited Speaker: Dietrich Leibfried Trapped ions were among the first systems, where a single quantum particle can be confined and manipulated in almost perfect isolation from its environment. This makes ions prime candidates for high precision experiments and for demonstrating textbook quantum mechanical principles. Several ions in the same trap can couple strongly to each other through their Coulomb interaction. This enables entangling quantum logic gates and as a consequence, many experiments with trapped ions have concentrated on advancing quantum information processing in the last 20 years. While much work still needs to be done before a scalable, fault tolerant universal quantum processor can be realized in any system, the advances with ions have enabled exploration of new avenues, such as quantum simulation, quantum logic spectroscopy for ion clocks, and for molecular ion and highly charged ion spectroscopy. Lately, ion-based sensors and ideas for hybrid quantum systems that aim to couple trapped ions to photons, neutral atoms, superconducting circuits, micro-mechanical oscillators or other quantum coherent entities are gaining momentum.\\ \\ Reference: R. Blatt and D. Wineland, Entangled states of trapped atomic ions, Nature 453, 1008 (2008) [Preview Abstract] |
Monday, June 5, 2017 10:15AM - 10:45AM |
1A.00004: Morning Coffee Break
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Monday, June 5, 2017 10:45AM - 12:00PM |
1A.00005: Graduate Student Symposium II Invited Speaker: Matthias Troyer |
Monday, June 5, 2017 12:00PM - 12:30PM |
1A.00006: Lunch
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Monday, June 5, 2017 12:30PM - 1:45PM |
1A.00007: Optical studies of current-induced magnetization switching and photonic quantum states Invited Speaker: Virginia Lorenz The ever-decreasing size of electronic components is leading to a fundamental change in the way computers operate, as at the few-nanometer scale, resistive heating and quantum mechanics prohibit efficient and stable operation. One of the most promising next-generation computing paradigms is Spintronics, which uses the spin of the electron to manipulate and store information in the form of magnetic thin films. I will present our optical studies of the fundamental mechanisms by which we can efficiently manipulate magnetization using electrical current. Although electron spin is a quantum-mechanical property, Spintronics relies on macroscopic magnetization and thus does not take advantage of quantum mechanics in the algorithms used to encode and transmit information. For the second part of my talk, I will present our work under the umbrella of new computing and communication technologies based on the quantum mechanical properties of photons. Quantum technologies often require the carriers of information, or qubits, to have specific properties. Photonic quantum states are good information carriers because they travel fast and are robust to environmental fluctuations, but characterizing and controlling photonic sources so the photons have just the right properties is still a challenge. I will describe our work towards enabling quantum-physics-based secure long-distance communication using photons.\\ \\ Reference: B. Fang, O. Cohen, M. Liscidini, J. E. Sipe, and V. O. Lorenz, ``Fast and highly resolved capture of the joint spectral density of photon pairs," Optica 1, 281–4 (2014). [Preview Abstract] |
Monday, June 5, 2017 1:45PM - 2:15PM |
1A.00008: Afternoon Coffee
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Monday, June 5, 2017 2:15PM - 3:30PM |
1A.00009: A fermionic simulator with ultracold atoms in engineered optical potentials Invited Speaker: Julio Barreiro In this talk I will show how our ultra-cold atom experiment will eventually simulate paradigmatic topological matter (fractional Chern insulators), black holes, and the electronic structure of molecules. Our experiment employs fermionic strontium atoms in engineered optical potentials, specifically optical lattices and tweezers. This system offers single-atom imaging and manipulation, fermionic statistics, as well as the same exquisite control of the internal electronic states of the atoms offered by trapped ions, used as a quantum computing architecture.\\ \\ Reference: ``Quantum Computing with Alkaline-Earth-Metal Atoms," A. Daley, M. Boyd, J. Ye and P. Zoller, Phys. Rev. Lett. 101, 170504 (2008) [Preview Abstract] |
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