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14 September 2020 – 17 September 2020 OSA Virtual Event - Eastern Daylight Time (UTC - 04:00)

Joint Visionary Talk: Mikhail Lukin (JTh3A)

Presider: Michal Bajcsy, University of Waterloo

Joint Visionary Talk: Mikhail Lukin (JTh3A)

Presider: Michal Bajcsy, University of Waterloo

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11:30 - 12:15
(UTC - 04:00)

Keynote: Programmable Quantum Systems for Simulations, Computation and Networking (JTh3A.1)
Presenter: Mikhail Lukin, Harvard University

Realization of quantum systems that may be capable of outperforming the existing classical counterparts in executing useful tasks is a central challenge in quantum science and engineering. In this talk, I will describe two related examples of our recent work towards these goals. In the first example, I will describe the recent advances involving programmable, coherent manipulation of quantum many-body systems using atom arrays excited into Rydberg states. I will describe our recent technical upgrades that now allow the control over 200 atoms in two-dimensional arrays. Recent progress involving the exploration of exotic many-body phenomena, as well as realization and testing of quantum optimization algorithms using such systems, will be discussed. In the second example, I will report on our progress towards realization of quantum repeaters for long-distance quantum communication. Specifically, I will describe experimental realization of memory-enhanced quantum communication, which utilizes a solid-state spin memory integrated in a nanophotonic diamond resonator to implement asynchronous Bell-state measurements. This enables a four-fold increase in the secret key rate of measurement device independent quantum key distribution over the loss-equivalent direct-transmission method while operating at megahertz clock rates. Prospects for scaling up these techniques, including realization of larger quantum processors and quantum networks will be discussed.

Authors:Mikhail Lukin, Harvard University

11:30 - 12:15
(UTC - 04:00)

Keynote: Programmable Quantum Systems for Simulations, Computation and Networking (JTh3A.1)
Presenter: Mikhail Lukin, Harvard University

Realization of quantum systems that may be capable of outperforming the existing classical counterparts in executing useful tasks is a central challenge in quantum science and engineering. In this talk, I will describe two related examples of our recent work towards these goals. In the first example, I will describe the recent advances involving programmable, coherent manipulation of quantum many-body systems using atom arrays excited into Rydberg states. I will describe our recent technical upgrades that now allow the control over 200 atoms in two-dimensional arrays. Recent progress involving the exploration of exotic many-body phenomena, as well as realization and testing of quantum optimization algorithms using such systems, will be discussed. In the second example, I will report on our progress towards realization of quantum repeaters for long-distance quantum communication. Specifically, I will describe experimental realization of memory-enhanced quantum communication, which utilizes a solid-state spin memory integrated in a nanophotonic diamond resonator to implement asynchronous Bell-state measurements. This enables a four-fold increase in the secret key rate of measurement device independent quantum key distribution over the loss-equivalent direct-transmission method while operating at megahertz clock rates. Prospects for scaling up these techniques, including realization of larger quantum processors and quantum networks will be discussed.

Authors:Mikhail Lukin, Harvard University