Quantum algorithms for grid-based variational time evolution

Autor: Pauline J Ollitrault, Sven Jandura, Alexander Miessen, Irene Burghardt, Rocco Martinazzo, Francesco Tacchino, Ivano Tavernelli

Publikováno v: Quantum, Vol 7, p 1139 (2023)

The simulation of quantum dynamics calls for quantum algorithms working in first quantized grid encodings. Here, we propose a variational quantum algorithm for performing quantum dynamics in first quantization. In addition to the usual reduction in c

Externí odkaz: https://doaj.org/article/7995b0abc045492a92dc0101a6d09742

Time-Optimal Two- and Three-Qubit Gates for Rydberg Atoms

Autor: Sven Jandura, Guido Pupillo

Publikováno v: Quantum, Vol 6, p 712 (2022)

We identify time-optimal laser pulses to implement the controlled-Z gate and its three qubit generalization, the C$_2$Z gate, for Rydberg atoms in the blockade regime. Pulses are optimized using a combination of numerical and semi-analytical quantum

Externí odkaz: https://doaj.org/article/ca65a58d2bcd4173872216bc3944f3af

Strong-coupling charge density wave in monolayer TiSe2

Autor: Patrick Le Fèvre, Igor Marković, Giovanni Vinai, Federico Mazzola, Gesa-Roxanne Siemann, Janika Reichstetter, Deepnarayanan Biswas, O. J. Clark, Sven Jandura, Matthew D. Watson, Tommaso Antonelli, Philip D. C. King, Martin McLaren, Andrew Hunter, Akhil Rajan, Kaycee Underwood

Publikováno v: Watson, M D, Rajan, A, Antonelli, T, Underwood, K, Marković, I, Mazzola, F, Clark, O J, Siemann, G R, Biswas, D, Hunter, A, Jandura, S, Reichstetter, J, McLaren, M, Le Fèvre, P, Vinai, G & King, P D C 2021, ' Strong-coupling charge density wave in monolayer TiSe 2 ', 2D materials, vol. 8, no. 1, 015004 . https://doi.org/10.1088/2053-1583/abafec
2D materials 8 (2021). doi:10.1088/2053-1583/abafec
info:cnr-pdr/source/autori:Watson, Matthew D.; Rajan, Akhil; Antonelli, Tommaso; Underwood, Kaycee; Markovic, Igor; Mazzola, Federico; Clark, Oliver J.; Siemann, Gesa-Roxanne; Biswas, Deepnarayan; Hunter, Andrew; Jandura, Sven; Reichstetter, Janika; McLaren, Martin; Le Fevre, Patrick; Vinai, Giovanni; King, Philip D. C./titolo:Strong-coupling charge density wave in monolayer TiSe2/doi:10.1088%2F2053-1583%2Fabafec/rivista:2D materials/anno:2021/pagina_da:/pagina_a:/intervallo_pagine:/volume:8

Authors gratefully acknowledge funding from The Royal Society, The Leverhulme Trust, and the European Research Council (through the ERC-714193-QUESTDO project). The MBE growth facility was funded through the Engineering and Physical Sciences Research

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::35c283ac7760afaa4c7fb1e4f95f75d9
https://pure.au.dk/portal/da/publications/strongcoupling-charge-density-wave-in-monolayer-tise2(7e33a72c-c429-44cf-b495-55347b3f828a).html