Alexander Ling
Principal Investigator
Centre for Quantum TechnologiesAssociate Professor
Department of Physics, Faculty of Science, National University of Singapore
Chief Scientific Officer
National Quantum Office
S15-02-03
Preprints
- Yaron Bromberg, A. Ling, Sébastien M. Popoff, Rodrigo Gutiérrez-Cuevas, Ohad Lib, Ronen Shekel. Shaping Single Photons through Multimode Optical Fibers using Mechanical Perturbations.
- A. Ling, Rodrigo Piera, James A. Grieve, Ayesha Reezwana, Wang Rui, J. B. Chin, Anindya Banerji, T.Islam, T.Islam. A privacy-preserving publicly verifiable quantum random number generator.
- Christoph F. Wildfeuer, A. Ling, Willi Meier, Tanvirul Islam, Ayesha Reezwana, Simon M. Burkhardt. First demonstration of a post-quantum key-exchange with a nanosatellite.
- S. Sachidananda, S. Sachidananda, A. Ling, Leonid Krivitsky, Victor Leong, Prithvi Gundlapalli. Realizing a robust, reconfigurable active quenching design for multiple architectures of single-photon avalanche detectors.
- A. Ling, Thomas Jennewein, Daniel K. L. Oi, Tom Vergoossen, Thomas Brougham, Brendon L. Higgins, Jasminder S. Sidhu, Tanvirul Islam. Finite resource performance of small satellite-based quantum key distribution missions.
- Clarence Liu, A. Ling, Moritz Mihm, Srihari Sivankaran. A CubeSat platform for space based quantum key distribution.
- A.B.Frank, Justin Zhou, J. Grieve, Ivan Verzhbitskiy, José Viana-Gomes, Leyi Loh, Michael Schmid, Kenji Watanabe, Takashi Taniguchi, Goki Eda, A. Ling. Mode-center Placement of Monolayer WS$_{2}$ in a Photonic Polymer Waveguide.
- Sonali Mohapatra, Markus Krutzik, Luca Mazzarella, David Lowndes, Thomas Brougham, Mustafa Gundogan, Siddarth K. Joshi, Daniel K. L. Oi, Jasminder S. Sidhu, Stefano Pirandola, Ivette Fuentes, John Rarity, Makan Mohageg, Thomas Jennewein, A. Ling, Paolo Villoresi, Giuseppe Vallone, Daniele Dequal. Advances in Space Quantum Communications.
- Simon Barraclough, Nguyen Hong Nhung, Alexander Lohrmann, Aitor Villar, Xueliang Bai, Robert Bedington, Tom Vergoossen, Huai Ying Lim, A. Ling, Douglas Griffin, Jai Vennik. Thermo-mechanical design for a miniaturized quantum light source on board the SpooQy-1 CubeSat.
- Simon Barraclough, Nguyen Hong Nhung, Alexander Lohrmann, Aitor Villar, Xueliang Bai, Robert Bedington, Tom Vergoossen, Huai Ying Lim, A. Ling, Douglas Griffin, Jai Vennik. Thermo-mechanical design for a miniaturized quantum light source on board the SpooQy-1 CubeSat.
- Chandrasekara C.M.R.B., R. Bedington, B.Xueliang, K. Ilangovan, Y.S. Yau, Denis Naughton, Simon Barraclough, Douglas Griffin, Russell Boyce, A. Ling. Demonstrating Miniaturised, entangled photon-pair sources on board nano satellites to enable future QKD missions.
- A. Ling, Christoph Wildfeuer, V. Scarani. A note on quantum safe symmetric key growing.
Publications
- J. Du, George F. R. Chen, Hongwei Gao, James A. Grieve, Dawn T. H. Tan, A. Ling. (2024). Demonstration of a low loss, highly stable and re-useable edge coupler for high heralding efficiency and low g(2)(0) SOI correlated photon pair sources. Optics Express 32 11406-11418
- Najme Ahmadi, Alexander Lohrmann, Stefan Nolte, Daniel Pardo, Subash Sachidananda, Mustafa Gündoğan, Simone Atzeni, Ria G. Krämer, Chanaprom Cholsuk, Mostafa Abasifard, Sebastian Ritter, Josefine Krause, Elisa Da Ros, Tobias Vogl, Joseph Lester, Markus Krutzik, Lukas Wiese, Giacomo Corrielli, Philipp Werner, Julian Bartholomäus, Sven Schwertfeger, A. Ling. (2024). QUICK$^3$ -- Design of a satellite-based quantum light source for quantum communication and extended physical theory tests in space. Advanced Quantum Technologies 2300343
- Masoud Ghalaii, Sima Bahrani, Carlo Liorni, Federico Grasselli, Hermann Kampermann, Lewis Wooltorton, Rupesh Kumar, Stefano Pirandola, Timothy P. Spiller, A. Ling, Bruno Huttner, Mohsen Razavi. (2023). Satellite-Based Quantum Key Distribution in the Presence of Bypass Channels. PRX Quantum 4 040320
- Ronen Shekel, Ohad Lib, Rodrigo Gutiérrez-Cuevas, Sébastien M. Popoff, A. Ling, Yaron Bromberg. (2023). Shaping single photons through multimode optical fibers using mechanical perturbations. APL Photonics 096109
- R.M. Chua, A. Ling, J. Grieve. (2022). Optimizing all-fiber nonlocal dispersion compensation for quantum communication networks: strategies and tools. SPIE Optics + Photonics, San Diego 12238
- R.M. Chua, J. Grieve, A. Ling. (2022). Fine-grained All-fiber Nonlocal Dispersion Compensation in the Telecommunications O-Band. Optics 9 15607–15615
- Angelina Frank, Daniel Leykam, Daria A. Smirnova, D.G. Angelakis, A. Ling. (2022). Boosting Topological Zero Modes Using Elastomer Waveguide Arrays. Optics Letters 47(18) 4620-4623
- Chithrabahnu Perumangatt, Tom Vergoossen , Alexander Lohrmann, Srihari Sivankaran, Ayesha Reezwana, Ali Anwar, S. Sachidananda, S. Sachidananda, Tanvirul Islam, A. Ling. (2021). Realizing quantum nodes in space for cost-effective, global quantum communication: in-orbit results and next steps. Proc. Of SPIE 11699 1169904
- A. Ling, Andreas Wicht, Benjamin Wiegand, Max Schiemangk, Simon Kanthak, Aaron Strangfeld, Markus Krutzik. (2021). Prototype of a compact rubidium-based optical frequency reference for operation on nanosatellites. J. Opt. Soc. Am. B 38 1885
- Y. Shi, H.S. Poh, A. Ling, C. Kurtsiefer. (2021). Fibre polarization state compensation in entanglement-based quantum key distribution. Optics Express 29 37075-3708
- T.Islam, S. Sachidananda, A. Ling, T.Islam, Ayesha Reezwana, Srihari Sivasankaran, Alexander Lohrmann, Tom Vergoossen, S. Sachidananda, Ali Anwar Macheri Abdulla, C. Perumangatt. (2021). Realizing quantum nodes in space for cost-effective, global quantum communication: in-orbit results and next steps. Proc. Of SPIE 11699
- Ali Anwar Macheri Abdulla, C. Perumangatt, Fabian Steinlechner, Thomas Jennewein, A. Ling. (2021). Entangled Photon-Pair Sources based on three-wave mixing in bulk crystals. Rev. Sci. Instrum. 92 041101
- Y. Shi, M. T. Soe, H.S. Poh, J. Grieve, C. Kurtsiefer, A. Ling. (2020). Stable Polarization Entanglement based Quantum Key Distribution over Metropolitan Fibre Network. Applied Physics Letters 117 124002
- Tom Vergoossen, C. Perumangatt, S. Sachidananda, A. Ling, Daniel K. L. Oi, Douglas Griffin, Christoph F. Wildfeuer, Kadir Durak, Rakhitha Chandrasekara, Zhongkan Tang, Ayesha Reezwana, Tanvirul Islam, Huai Ying Lim, Robert Bedington, Aitor Villar, Alexander Lohrmann, Xueliang Bai, S. Sachidananda. (2020). Entanglement demonstration on board a nano-satellite. Optica 7 734
- C. Perumangatt, A. Lohrmann, A. Ling. (2020). Experimental conversion of position correlation into polarization entanglement. Phys. Rev. A 102 012404
- A. Lohrmann, C. Perumangatt, A.V.Zafra, A. Ling. (2020). Broadband pumped polarization entangled photon-pair source in a linear beam displacement interferometer. Applied Physics Letters 116 021101
- K. F. Ng, Manuel J. L. F. Rodrigues, Jose Viana-Gomes, A. Ling, J. Grieve. (2020). Mapping a photonic random walk by tuning the coupling coefficient. Optics Letters 45 288
- A.V.Zafra, A. J. Stolk, Adriaan Johannes Stolk, A. Lohrmann, A. Ling. (2019). Enhancing SPDC brightness using elliptical pump shapes. Optics Express 27 32235
- A. Lohrmann, A.V.Zafra, A. J. Stolk, Adriaan Johannes Stolk, A. Ling. (2019). Enhancing SPDC brightness using elliptical pump shapes. Optics Express 27 32235
- Tom Vergoossen, R. Bedington, James A Grieve, A. Ling. (2019). Satellite quantum communications when man-in-the-middle attacks are excluded. Entropy 21 387
- Tom Vergoossen, R. Bedington, J. Grieve, A. Ling. (2019). Satellite quantum communications when man-in-the-middle attacks are excluded. Entropy 21 387
- F. Auksztol, Daniele Vella, Ivan Verzhbitskiy, K. F. Ng, Ho Yi Wei, J. Grieve, Jose Viana-Gomes, Goki Eda, A. Ling. (2019). Elastomeric waveguide on-chip coupling of an encapsulated MoS$_2$ monolayer. ACS Photonics
- K.T. Goh, C. Perumangatt, Zhi Xian Lee, A. Ling, V. Scarani. (2019). Experimental comparison of tomography and self-testing in certifying entanglement. Phys. Rev. A 100 022305
- Denis Naughton, R. Bedington, Simon Barraclough, T.Islam, T.Islam, Doug Griffin, Brenton Smith, Joe Kurtz, Andrey Alenin, Israel J. Vaughn, Arvind Ramana, Igor Dimitriyevic, Tang Zong Sheng, C. Kurtsiefer, A. Ling, Russell Boyce. (2019). Design considerations for an optical link supporting intersatellite quantum key distribution. Optical Engineering 58 016106
- J. Grieve, Y. Shi, H.S. Poh, C. Kurtsiefer, A. Ling. (2019). Characterizing nonlocal dispersion compensation in deployed telecommunications fiber. Applied Physics Letters 114 131106
- J. Grieve, R. Bedington, Z.K. Tang, Chandrasekara C.M.R.B., A. Ling. (2018). SpooQySats: CubeSats to demonstrate quantum key distribution technologies. Acta Astronautica 151 103
- A. Ling, Tang Zong Sheng, C. Perumangatt. (2018). Experimental distillation of bi-partite polarization entanglement using polarizing Mach-Zehnder interferometers. Phys. Rev. A 98 022313
- A. Lohrmann, A.V.Zafra, A. J. Stolk, Adriaan Johannes Stolk, A. Ling. (2018). Optimal spatial filtering for a bright entangled photon source. Applied Physics Letters 113 171109
- A.V.Zafra, A. Lohrmann, A. Ling. (2018). Experimental entangled photon pair generation using crystals with parallel optical axes. Optics Express 26 12396
- J. Grieve, K. F. Ng, Manuel J. L. F. Rodrigues, José Viana-Gomes, A. Ling. (2017). Mechanically tunable integrated beamsplitters on a flexible polymer platform. Applied Physics Letters 111 211106
- Y. Shi, Z. J. Lim, H.S. Poh, P.K. Tan, Peiyu Amelia Tan, A. Ling, C. Kurtsiefer. (2017). Breakdown flash at telecom wavelengths in InGaAs avalanche photodiodes. Optics Express 25 30388
- Chandrasekara C.M.R.B., Kadir Durak, A. Ling. (2017). Tracking capacitance of liquid crystal devices to improve polarization rotation accuracy. Optics Express 25 20363
- R. Bedington, J.M. Arrazola, A. Ling. (2017). Progress in satellite quantum key distribution. NPJ: Quantum Information 3 30
- Daniel KL Oi, A. Ling, Giuseppe Vallone, Paolo Villoresi, Steve Greenland, Emma Kerr, Malcolm Macdonald, Harald Weinfurter, Hans Kuiper, Edoardo Charbon, Rupert Ursin. (2017). CubeSat quantum communications mission. EPJ Quantum Technology 4 6
- Daniel Oi, A. Ling, J. Grieve, Thomas Jennewein, Aline Dinekelaker, Markus Krutzik. (2016). Nanosatellites for quantum science and technology. Contemporary Physics 58 25-52
- R. Bedington, B.Xueliang, T.C.Edward, Y.C. Tan, K. Durak, A.V.Zafra, J. Grieve, A. Ling, Daniel Oi. (2016). Nanosatellite experiments to enable future space-based QKD missions. EPJ Quantum Technology 3 12
- ZS.Tang, K. Durak, A. Ling. (2016). Fault-tolerant and finite-error localization for point emitters within the diffraction limit. Optics Express 24 22004
- Z.K. Tang, Chandrasekara C.M.R.B., Y.C. Tan, T.K. Cheng, Luo Sha, Goh Cher Hiang, Daniel Oi, A. Ling. (2016). Generation and analysis of correlated pairs of photons on board a nanosatellite. Physical Review Applied 5 054022
- Z.K. Tang, Chandrasekara C.M.R.B., Y.C. Tan, T.K. Cheng, K. Durak, A. Ling. (2016). The photon pair source that survived a rocket explosion. Scientific Reports 6 25603
- K. Durak, A.V.Zafra, S.Brigitta, Chandrasekara C.M.R.B., Z.K. Tang, R. Bedington, A. Ling. (2016). The next iteration of the small photon entangling quantum system (SPEQS-2.0). Proc. Of SPIE 9762 976209
- S.Brigitta, J. Grieve, K. Durak, A. Ling. (2016). The thick-crystal regime in photon pair sources. Optica 3 347
- J. Grieve, Chandrasekara C.M.R.B., Z.K. Tang, A. Ling. (2016). Correcting for accidental correlations in saturated avalanche photodiodes. Optics Express 24 3592
- Y.C. Tan, Chandrasekara C.M.R.B., T.K. Cheng, A. Ling. (2015). Radiation tolerance of opto-electronic components proposed for space-based quantum key distribution. J. Mod. Opt. 62
- T.K. Cheng, Chandrasekara C.M.R.B., Y.C. Tan, A. Ling. (2015). Space qualified nanosatellite electronics platform for photon pair experiments. IEEE/OSA Journal of Lightwave Technology 33 4799
- R. Bedington, T.C.Edward, Y.C. Tan, T.K. Cheng, K. Durak, J. Grieve, Jesper Larsen, Daniel Oi, A. Ling. (2015). Deploying quantum light sources on nanosatellites II: lessons and perspectives on CubeSat spacecraft. Proc. Of SPIE doi: 10.11
- Chandrasekara C.M.R.B., Z.K. Tang, Y.C. Tan, T.K. Cheng, S.Brigitta, K. Durak, J. Grieve, A. Ling. (2015). Deploying quantum light sources on nanosatellites I: lessons and perspectives on the optical system. Proc. Of SPIE doi: 10.11
- Chandrasekara C.M.R.B., Z.K. Tang, Y.C. Tan, T.K. Cheng, Christoph Wildfeuer, A. Ling. (2015). Single photon counting for space based quantum experiments. Proc. Of SPIE doi:10.111
- Y.C. Tan, Chandrasekara C.M.R.B., T.K. Cheng, A. Ling. (2015). Radiation tolerance of opto-electronic components proposed for space-based quantum key distribution. J. Mod. Opt. DOI: 10.10
- Z.K. Tang, Chandrasekara C.M.R.B., Y.S. Yau, T.K. Cheng, Christoph Wildfeuer, A. Ling. (2014). Near-space flight of a correlated photon system. Scientific Reports 4 6336
- Y.C. Tan, Chandrasekara C.M.R.B., T.K. Cheng, A. Ling. (2013). Silicon avalanche photodiode operation and lifetime analysis for small satellites. Optics Express 21 16946-1695
- William Morong, A. Ling, Daniel Oi. (2012). Quantum optics for space platforms. Optics & Photonics News 23 42
- A. Ling, S. Sachidananda, S. Sachidananda. (2011). Bias voltage Control of Avalanche Photo-Diode Using a Window Comparator. IEEE Summer Topicals Conference
- S. Sachidananda, S. Sachidananda, A. Ling. (2011). Bias voltage control of an avalanche photo-diode using a window comparator. . PhoSST 25
- Polyakov, S., Mueller, A., Flagg, E., A. Ling, Borjemscaia, N., Van Keuren, E., Migdall, A., Solomon, G.. (2011). Coalescence of single photons emitted by disparate single photon source: the example of InAs quantum dots and parametric down-conversion sources. Phys. Rev. Lett. 107 157402
- Flagg, E., Mueller, A., Polyakov, S., A. Ling, Migdall, A., Solomon, G.. (2010). Two photon interference from separate quantum dots. Phys. Rev. Lett. 104 137401
- Pearlman, A., A. Ling, Goldschmidt, E., Fan, J., Migdall, A.. (2010). Enhancing image contrast using coherent states and photon number resolving detectors. Optics Express 18 6033
- Levine, Z. H., Fan, J., Chen, J., A. Ling, Migdall, A.. (2010). Heralded, pure-state single-photon source based on a Potassium Titanyl Phosphate waveguide. Optics Express 18 3708
- A. Ling, Jun, C., Jingyun, F., Migdall, A.. (2009). Mode expansion and Bragg filtering for a high-fidelity fiber-based photon-pair source. Optics Express 17 21302
- Jun, C., Pearlman, A., A. Ling, Jingyun, F., Migdall, A.. (2009). A versatile waveguide source of photon pairs for chipscale quantum information processing.. Optics Express 17 6727
- A. Ling, A. Lamas-Linares, C. Kurtsiefer. (2008). Absolute emission rates of spontaneous parametric down conversion into single transverse Gaussian modes. Phys. Rev. A 77 043834
- C. Branciard, N. Brunner, N. Gisin, C. Kurtsiefer, A. Lamas-Linares, A. Ling, V. Scarani. (2008). Testing quantum correlations versus single-particle properties within Leggett\'s model and beyond. Nature Physics 4 681-685
- T. Durt, A. Ling, A. Lamas-Linares, C. Kurtsiefer. (2008). Wigner tomography of two qubit states and quantum cryptography. Phys. Rev. A 78 042338
- A. Ling, M.P. Peloso, I. Marcikic, V. Scarani, A. Lamas-Linares, C. Kurtsiefer. (2008). Experimental quantum key distribution based on a Bell test. Phys. Rev. A 78 020301
- C. Branciard, A. Ling, N. Gisin, C. Kurtsiefer, A. Lamas-Linares, V. Scarani. (2007). Experimental Falsification of Leggett\'s Non-Local Variable Model. Phys. Rev. Lett. 99 210407
- A. Ling, P.Y. Han, A. Lamas-Linares, C. Kurtsiefer. (2006). Preparation of Bell States with Controlled White Noise. Laser Physics 16 1140
- A. Ling, S.K. Pang, A. Lamas-Linares, C. Kurtsiefer. (2006). An Optimal Photon Counting Polarimeter. J. Mod. Opt. 53 1523
- S.K. Pang, A. Ling, A. Lamas-Linares, C. Kurtsiefer. (2006). Experimental Polarization State Tomography using Optimal Polarimeters. Phys. Rev. A 74 022309
- I. Marcikic, A. Ling, S.Y. Looi, D. Gosal, A. Lamas-Linares, C. Kurtsiefer. (2005). Free space quantum cryptography using compact polarization entangled photon pair source. CLEO/IQEC 1619-1620
- D. Kaszlikowski, Gosal, D., A. Ling, Kwek, L. C., Zukowski, M., Oh, C. H.. (2002). Three-qutrit correlations violate local realism more strongly than those of three qubits. Phys. Rev. A 66 032103
- A. Ling. Optical front-end for a quantum key distribution cubesat. - None -
- Leyi Loh, José Viana-Gomes, Ivan Verzhbitskiy, James A. Grieve, Justin Zhou, Angelina Frank, A. Ling, Goki Eda, Takashi Taniguchi, Kenji Watanabe, Michael Schmid. Mode-center Placement of Monolayer WS$_{2}$ in a Photonic Polymer Waveguide. - None -
- Tom Vergoossen, Sergio Loarte, R. Bedington, Hans Kuiper, A. Ling. Satellite constellations for trusted node QKD networks. Acta Astronautica
- J. Grieve, R. Bedington, Z.K. Tang, Chandrasekara C.M.R.B., A. Ling. SpooQySats: CubeSats to demonstrate quantum key distribution technologies. - None -
- R. Bedington, Chandrasekara C.M.R.B., A. Ling, J. Grieve. SpooQySats: cubesats to demonstrate quantum key distribution technologies. - None -
