Photonic Frequency Bin Entanglement – Generation, Manipulation, and Algorithms

Interdisciplinary Areas: Micro-, Nano-, and Quantum Engineering

Project Description

Experiments at Purdue have recently demonstrated frequency bin entanglement with on-chip optical microresonator photon pair sources, proving entanglement in two and three frequency dimensions. These biphoton frequency combs already show up to 40 correlated signal and idler frequencies, suggesting potential for entanglement over much higher dimensionality (of interest, e.g., due to potential for higher information capacity per particle). Purdue has also collaborated with Oak Ridge National Lab on realization of quantum gates for frequency bin entangled photons. One-photon gates have been demonstrated in two and three frequency dimensions (the first high dimensional gate for frequency encoded photons), and two photon gates are under investigation. The proposed project seeks to advance the science and technology of the new subfield of frequency-encoded photons for quantum information processing. Topics of interest include but are not limited to: generation of frequency-bin entanglement, hyper entanglement in frequency, time, and/or space, and multi-photon entangled states; protocols and algorithms to certify and exploit frequency bin entanglement in higher dimensions; applications to quantum communications and networking, such as high dimensional quantum teleportation; and application of high-dimensional entanglement to quantum simulation. Opportunities to collaborate on photonic integration supporting this research are also anticipated. 

Start Date

Late spring, summer, or early fall 2019

Postdoc Qualifications

Experimental experience with quantum optics and photonics and familiarity with quantum information concepts preferred.


Andrew Weiner, Distinguished Professor of Electrical and Computer Engineering,
Sabre Kais, Professor of Chemistry; courtesy appointment as Professor of Physics and Computer Science;
1. Poolad Imany, Jose A. Jaramillo-Villegas, Ogaga D. Odele, Kyunghun Han, Daniel E. Leaird, Joseph M. Lukens, Pavel Lougovski, Minghao Qi, and Andrew M. Weiner, “50-GHz-spaced comb of high-dimensional frequency-bin entangled photons from an on-chip silicon nitride microresonator,” Optics Express 26, 1825-1840 (2018). 
2. J.A. Jaramillo-Villegas, P. Imany, O.D. Odele, D.E. Leaird, Z.Y. Ou, M. Qi, and A.M. Weiner, “Persistent energy–time entanglement covering multiple resonances of an on-chip biphoton frequency comb,” Optica 4, 655-658 (2017). 
3. H.-H. Lu, J. M. Lukens, N. A. Peters, O. D. Odele, D. E. Leaird, A. M. Weiner, and P. Lougovski, "Electro-Optic Frequency Beam Splitters and Tritters for High-Fidelity Photonic Quantum Information Processing," Physical Review Letters 120, 030502 (2018). 
4. Sabre Kais, “Quantum Information for Quantum Chemistry,” Adv. Chem. Phys. 154, (2014).
5. Shu-Hao Yeha, Ross Hoehn, Marco Allodia, Gregory Engel and Sabre Kais, “Elucidation of Near-Resonance Vibronic Coherence Lifetimes by Nonadiabatic Electronic-Vibrational State Character Mixing,” PNAS Latest Articles, DOI:10.1073/1701390115 (2018).