Non-Hermitian photon number filtering using N00N state Bloch oscillations

• URL: http://arxiv.org/abs/2608.01484v1
• Date: Sun, 02 Aug 2026 20:33:19 GMT
• Title: Non-Hermitian photon number filtering using N00N state Bloch oscillations
• Abstract summary: We explore Bloch oscillations of $N=1$ and $N=2$ photonic N00N states, using an array of linearly growing effective index waveguides with a simulated asymmetric loss profile.<n>We selectively output specific photon number states, and we achieve dynamic switching between 2-photon dominated (80% of the output) and 1-photon dominated (90% of the output) cases.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We explore Bloch oscillations of $N=1$ and $N=2$ photonic N00N states, using an array of linearly growing effective index waveguides with a simulated asymmetric loss profile. Starting with equal probability input $N=1$ and $N=2$ N00N states, and siphoning off a portion of the waveguides near the half Bloch period, we selectively output specific photon number states. Tuning the input phase, we achieve dynamic switching between 2-photon dominated (80\% of the output) and 1-photon dominated (90\% of the output) cases. This offers a path to improved state preparation in photonic circuits used in computing and networking.

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