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Integrated Photonic Technology for Quantum Simulators: Quantum Information and Computation Seminar

Seminar: Departmental | February 12 | 2-3 p.m. | 410 Hearst Memorial Mining Building


Alberto Peruzzo, University of Bristol, UK

Berkeley Quantum Information & Computation Center


Quantum information science provides new paradigms of communication, measurement and computation [1]. Some of the most startling future quantum technologies are quantum key distribution, which offers perfectly secure communication; quantum metrology, which allows more precise measurements than could ever be achieved without quantum mechanics and quantum computers, which promise exponentially faster operation for particular tasks. Particularly appealing today are quantum simulators, where one controllable quantum system is used to efficiently investigate the behaviour and properties of another, less accessible one. Quantum simulators hold the promise of tackling problems that are too demanding for classical computers but would require far less resources than a full-scale quantum computer [2].

Recent quantum optical work has highlighted the promise of monolithic integrated optics for quantum information science [3,4,5]. We take advantage of the photonic technology to demonstrate high-fidelity realizations of key quantum photonic circuits [6,7], the building blocks of future quantum simulators for physical, chemical and biological systems [8,9].


References
[1] M A Nielsen and I L Chuang, Quantum Computation and Quantum Information, ed. Cambridge
Series on Information and the Natural Sciences, ed., (Cambridge University Press, 2000)
[2] J Ignacio Cirac and Peter Zoller, Nature Physics 8, no. 4 (2012).
[3] A Politi et al., Science 320, no. 5876 (2008).
[4] J C F Matthews et al., Nature Photonics 3, no. 6 (2009).
[5] A Peruzzo et al., Science 338, no. 6107 (2012).
[6] A Laing et al., Applied Physics Letters 97, no. 21 (2010).
[7] P J Shadbolt et al., Nature Photonics 6, 45 (2011).
[8] A Peruzzo et al., Science 329, no. 5998 (2010).
[9] J C F Matthews et al., Arxiv Preprint arXiv:1109.4871 (2011).


shabani@berkeley.edu