Zobrazeno 1 - 10
of 173
pro vyhledávání: '"Chithrabhanu A"'
Autor:
Tannous, Ramy, Wu, Wilson, Vinet, Stéphane, Perumangatt, Chithrabhanu, Sinar, Dogan, Ling, Alexander, Jennewein, Thomas
Phase stabilization of distant quantum time-bin interferometers is a major challenge for quantum communication networks, and is typically achieved by exchanging optical reference signals, which can be particularly challenging over free-space channels
Externí odkaz:
http://arxiv.org/abs/2302.05038
Autor:
Chithrabhanu, Manju Sankaramalil1 manjuchithrabhanu@gmail.com, Somasundaram, Kanagasabapathi2 s_sundaram@cb.amrita.edu
Publikováno v:
Communications in Combinatorics & Optimization. 2024, Vol. 9 Issue 3, p425-436. 12p.
Autor:
Lal, Nijil, Mishra, Sarika, Rani, Anju, Banerji, Anindya, Perumangattu, Chithrabhanu, Singh, R. P.
Duality in the entanglement of identical particles manifests that entanglement in only one variable can be revealed at a time. We demonstrate this using polarization and orbital angular momentum (OAM) variables of indistinguishable photons generated
Externí odkaz:
http://arxiv.org/abs/2104.11784
Autor:
Perumangatt, Chithrabhanu, Vergoossen, Tom, Lohrmann, Alexander, Sivasankaran, Srihari, Reezwana, Ayesha, Anwar, Ali, Sachidananda, Subash, Islam, Tanvirul, Ling, Alexander
Publikováno v:
Proceedings Volume 11699, Quantum Computing, Communication, and Simulation; 1169904 (2021)
Quantum sources and receivers operating on-board satellites are an essential building block for global quantumnetworks. SpooQy-1 is a satellite developed at the Centre for Quantum Technologies, which has successfully demonstrated the operation of an
Externí odkaz:
http://arxiv.org/abs/2104.10839
Autor:
Anwar, Ali, Perumangatt, Chithrabhanu, Steinlechner, Fabian, Jennewein, Thomas, Ling, Alexander
Publikováno v:
Review of Scientific Instruments 92, 041101 (2021)
Entangled photon-pairs are a critical resource in quantum communication protocols ranging from quantum key distribution to teleportation. The current workhorse technique for producing photon-pairs is via spontaneous parametric down conversion (SPDC)
Externí odkaz:
http://arxiv.org/abs/2007.15364
Autor:
Villar, Aitor, Lohrmann, Alexander, Bai, Xueliang, Vergoossen, Tom, Bedington, Robert, Perumangatt, Chithrabhanu, Lim, Huai Ying, Islam, Tanvirul, Reezwana, Ayesha, Tang, Zhongkan, Chandrasekara, Rakhitha, Sachidananda, Subash, Durak, Kadir, Wildfeuer, Christoph F., Griffin, Douglas, Oi, Daniel K. L., Ling, Alexander
Global quantum networks for secure communication can be realised using large fleets of satellites distributing entangled photon-pairs between ground-based nodes. Because the cost of a satellite depends on its size, the smallest satellites will be mos
Externí odkaz:
http://arxiv.org/abs/2006.14430
Publikováno v:
Phys. Rev. A 102, 012404 (2020)
This manuscript presents a method to convert position correlation of photon-pairs into polarization entanglement. This is achieved by individually manipulating the polarization state of photons generated in different parts of a non-linear medium and
Externí odkaz:
http://arxiv.org/abs/1910.13149
We experimentally demonstrate a source of polarization entangled photon-pairs based on a single periodically-poled potassium titanyl phosphate (PPKTP) crystal pumped with a broadband, free running laser diode.The crystal is placed within a linear bea
Externí odkaz:
http://arxiv.org/abs/1908.09568
Publikováno v:
Rev. Sci. Instrum. 90, 113104 (2019)
Heralded single photon sources (HSPS) from spontaneous parametric down-conversion are widely used as single photon sources. We study the photon number statistics of an HSPS carrying orbital angular momentum in our laboratory and observe the sub-Poiss
Externí odkaz:
http://arxiv.org/abs/1907.10513
Publikováno v:
Phys. Rev. A 100, 022305 (2019)
We assess the quality of a source of allegedly pure two-qubit states using both standard tomography and methods inspired by device-independent self-testing. Even when the detection and locality loopholes are open, the latter methods can dispense with
Externí odkaz:
http://arxiv.org/abs/1901.10127