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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…
Architecture for Integrated RF Photonic Downconversion of Electronic Signals
Nathan P. O'Malley, Keith A. Mckinzie, Mohammed S. Alshaykh +5
Electronic analog to digital converters (ADCs) are running up against the well-known bit depth vs bandwidth tradeoff. Towards this end, RF photonic-enhanced ADCs have been the subj…
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…