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High-dimensional entanglement certification: bounding relative entropy of entanglement in experiment-friendly measurements
Alexandria J. Moore, Andrew M. Weiner
Entanglement -- the coherent correlations between parties in a joint quantum system -- is well-understood and quantifiable in the two-dimensional, two-party case. Higher (>2)-dimen…
Time-resolved Hanbury Brown-Twiss interferometry of on-chip biphoton frequency combs using Vernier phase modulation
Karthik V. Myilswamy, Suparna Seshadri, Hsuan-Hao Lu +5
Biphoton frequency combs (BFCs) are promising quantum sources for large-scale and high-dimensional quantum information and networking systems. In this context, the spectral purity…
Complete frequency-bin Bell basis synthesizer
Suparna Seshadri, Hsuan-Hao Lu, Daniel E. Leaird +2
We report the experimental generation of all four frequency-bin Bell states in a single versatile setup via successive pumping of spontaneous parametric downconversion with single…
Nonlocal subpicosecond delay metrology using spectral quantum interference
Suparna Seshadri, Navin Lingaraju, Hsuan-Hao Lu +3
Timing and positioning measurements are key requisites for essential quantum network operations such as Bell state measurement. Conventional time-of-flight measurements using singl…
High-dimensional discrete Fourier transform gates with the quantum frequency processor
Hsuan-Hao Lu, Navin B. Lingaraju, Daniel E. Leaird +2
The discrete Fourier transform (DFT) is of fundamental interest in photonic quantum information, yet the ability to scale it to high dimensions depends heavily on the physical enco…
Temporal modulation of a spectral compressor for efficient quantum storage
Karthik V. Myilswamy, Andrew M. Weiner
Spectral and temporal mode matching are required for the efficient interaction of photons and quantum memories. In our previous work, we proposed a new route to spectrally compress…