Quantum and optical technology

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Entirety of Quantum Uncertainty and Its Experimental VerificationSupported by the National Key Research and Development Program of China (Grant No. 2017YFA0303703), the National Natural Science Foundation of China (Grant Nos. 91836303, 61975077, 61490711, 11690032, 11875160, and U1801661), the Natural Science Foundation of Guangdong Province (Grant No. 2017B030308003), the Key R&D Program of Guangdong Province (Grant No. 2018B030326001), the Science, Technology and Innovation Commission of Shenzhen Municipality (Grant Nos. JCYJ20170412152620376, JCYJ20170817105046702, and KYTDPT20181011104202253), the Economy, Trade and Information Commission of Shenzhen Municipality (Grant No. 201901161512), Guangdong Provincial Key Laboratory (Grant No. 2019B121203002), ARC DECRA 180100156 and ARC DP210102449.

Chinese Physics Letters IOP Publishing 38:7 (2021) 070303

Authors:

Jie Xie, Li Zhou, Aonan Zhang, Huichao Xu, Man-Hong Yung, Ping Xu, Nengkun Yu, Lijian Zhang
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Polynomial unconstrained binary optimisation inspired by optical simulation

(2021)

Authors:

Dmitry A Chermoshentsev, Aleksei O Malyshev, Mert Esencan, Egor S Tiunov, Douglas Mendoza, Alán Aspuru-Guzik, Aleksey K Fedorov, Alexander I Lvovsky
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Super-resolution linear optical imaging in the far field

(2021)

Authors:

AA Pushkina, G Maltese, JI Costa-Filho, P Patel, AI Lvovsky
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Alpha Buckets in Longitudinal Phase Space: a Bifurcation Analysis

ArXiv 2104.08056 (2021)

Authors:

Jernej Frank, Tom Mertens, Markus Ries
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Entangled resource for interfacing single- and dual-rail optical qubits

Quantum Verein zur Forderung des Open Access Publizierens in den Quantenwissenschaften 5 (2021) 416

Authors:

David Drahi, Demid V Sychev, Khurram K Pirov, Ekaterina A Sazhina, Valeriy A Novikov, Ian A Walmsley, Alexander Lvovsky

Abstract:

Today's most widely used method of encoding quantum information in optical qubits is the dual-rail basis, often carried out through the polarisation of a single photon. On the other hand, many stationary carriers of quantum information – such as atoms – couple to light via the single-rail encoding in which the qubit is encoded in the number of photons. As such, interconversion between the two encodings is paramount in order to achieve cohesive quantum networks. In this paper, we demonstrate this by generating an entangled resource between the two encodings and using it to teleport a dual-rail qubit onto its single-rail counterpart. This work completes the set of tools necessary for the interconversion between the three primary encodings of the qubit in the optical field: single-rail, dual-rail and continuous-variable.
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