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Generation and characterization of ultrabroadband polarization-frequency hyperentangled photons
Hsuan-Hao Lu, Muneer Alshowkan, Karthik V. Myilswamy +3
We generate ultrabroadband photon pairs entangled in both polarization and frequency bins through an all-waveguided Sagnac source covering the entire optical C- and L-bands (1530--…
Characterization of Quantum Frequency Processors
Hsuan-Hao Lu, Nicholas A. Peters, Andrew M. Weiner +1
Frequency-bin qubits possess unique synergies with wavelength-multiplexed lightwave communications, suggesting valuable opportunities for quantum networking with the existing fiber…
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…