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Mohanty A, Zhang M, Dutt A, et al. Quantum interference between transverse spatial waveguide modes. Nat Commun. 2017;8:14010doi: 10.1038/ncomms14010.
Mohanty, A., Zhang, M., Dutt, A., Ramelow, S., Nussenzveig, P., & Lipson, M. (2017). Quantum interference between transverse spatial waveguide modes. Nature communications, 814010. https://doi.org/10.1038/ncomms14010
Mohanty, Aseema, et al. "Quantum interference between transverse spatial waveguide modes." Nature communications vol. 8 (2017): 14010. doi: https://doi.org/10.1038/ncomms14010
Mohanty A, Zhang M, Dutt A, Ramelow S, Nussenzveig P, Lipson M. Quantum interference between transverse spatial waveguide modes. Nat Commun. 2017 Jan 20;8:14010. doi: 10.1038/ncomms14010. PMID: 28106036; PMCID: PMC5263888.
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Nat Commun. 2017 Jan 20;8:14010. doi: 10.1038/ncomms14010.

Quantum interference between transverse spatial waveguide modes.

Nature communications

Aseema Mohanty, Mian Zhang, Avik Dutt, Sven Ramelow, Paulo Nussenzveig, Michal Lipson

Affiliations

  1. School of Electrical and Computer Engineering, Cornell University, Ithaca, New York 14853, USA.
  2. Department of Electrical Engineering, Columbia University, New York, New York 10027, USA.
  3. School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA.
  4. School of Applied and Engineering Physics, Cornell University, Ithaca, New York 14853, USA.
  5. Institute for Physics, Humboldt-University Berlin, 12489 Berlin, Germany.
  6. Instituto de Fisica, Universidade de São Paulo, P.O. Box 66318, São Paulo 05315-970, Brazil.
  7. Kavli Institute at Cornell for Nanoscale Science, Cornell University, Ithaca, New York 14853, USA.

PMID: 28106036 PMCID: PMC5263888 DOI: 10.1038/ncomms14010

Abstract

Integrated quantum optics has the potential to markedly reduce the footprint and resource requirements of quantum information processing systems, but its practical implementation demands broader utilization of the available degrees of freedom within the optical field. To date, integrated photonic quantum systems have primarily relied on path encoding. However, in the classical regime, the transverse spatial modes of a multi-mode waveguide have been easily manipulated using the waveguide geometry to densely encode information. Here, we demonstrate quantum interference between the transverse spatial modes within a single multi-mode waveguide using quantum circuit-building blocks. This work shows that spatial modes can be controlled to an unprecedented level and have the potential to enable practical and robust quantum information processing.

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