On-demand continuous-variable quantum entanglement source for integrated circuits

Abstract: Integration of devices generating non-classical states (such as entanglement) into photonic circuits is one of the major goals in achieving integrated quantum circuits (IQCs). This is demonstrated successfully in recent decades. Controlling the non-classicality generation in these micron-scale devices is also crucial for the robust operation of the IQCs. Here, we propose a micron-scale quantum entanglement device whose nonlinearity (so the generated non-classicality) can be tuned by several orders of magnitude via an applied voltage without altering the linear response. Quantum emitters (QEs), whose level-spacing can be tuned by voltage, are embedded into the hotspot of a metal nanostructure (MNS). QE-MNS coupling introduces a Fano resonance in the “nonlinear response”. Nonlinearity, already enhanced extremely due to localization, can be controlled by the QEs’ level-spacing. Nonlinearity can either be suppressed or be further enhanced by several orders. Fano resonance takes place in a relatively narrow frequency window so that ∼meV voltage-tunability for QEs becomes sufficient for a continuous turning on/off of the non-classicality. This provides as much as 5 orders of magnitude modulation depths.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: On-demand continuous-variable quantum entanglement source for integrated circuits ; volume:12 ; number:2 ; year:2023 ; pages:229-237 ; extent:9 ; Nanophotonics ; 12, Heft 2 (2023), 229-237 (gesamt 9)

Contributors, Places and Time

• Creator: Günay, Mehmet ; Das, Priyam ; Yüce, Emre ; Polat, Emre Ozan ; Bek, Alpan ; Tasgin, Mehmet Emre

Further information

• DOI: 10.1515/nanoph-2022-0555
• URN: urn:nbn:de:101:1-2023020113294560518759
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 15.08.2025, 7:26 AM CEST