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2 June 2017 Intramode encoding of continuous-variable quantum information in a single optical parametric oscillator (Conference Presentation)
Olivier Pfister
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Proceedings Volume 10118, Advances in Photonics of Quantum Computing, Memory, and Communication X; 1011805 (2017) https://doi.org/10.1117/12.2253603
Event: SPIE OPTO, 2017, San Francisco, California, United States
Abstract
Quantum information can be encoded in a scalable manner over the continuous variables (CV) that are the canonically conjugate quantum amplitudes of the electromagnetic field, which are mathematical equivalents of the position and momentum of the quantum harmonic oscillator. Previous results in our group in Charlottesville and the groups of Akira Furusawa in Tokyo, of Nicolas Treps in Paris, and of Ping-Koy Lam in Canberra, have shown that CV quantum information is massively scalable. In addition, Nicolas Menicucci in Melbourne has shown that there exists a fault tolerance threshold for CV quantum computing with the Gottesman-Kitaev-Preskill qubit error encoding. Here, we report on our exploration of the extension of scalable CV encoding by way of intramode, rather than intermode, squeezing and entanglement. As is well known, single-mode squeezing can only be considered along with the "quasi-mode" approximation which assimilates the modes of the optical parametric oscillator cavity used in the experiment to delta functions. As Hans Bachor and Tim Ralph noted, when one ambles beyond this approximation, single-mode squeezing can be described as intramode two-mode squeezing. Here, we aim at generalizing this situation to the case of multipartite entangled cluster states.
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Citation Download Citation
Olivier Pfister "Intramode encoding of continuous-variable quantum information in a single optical parametric oscillator (Conference Presentation)", Proc. SPIE 10118, Advances in Photonics of Quantum Computing, Memory, and Communication X, 1011805 (2 June 2017); https://doi.org/10.1117/12.2253603
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KEYWORDS
Quantum information
Computer programming
Optical parametric oscillators
Quantum computing
Electromagnetism
Oscillators
Quantum communications
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