Artículo
Boson sampling with ultracold atoms in a programmable optical lattice
Autor/es | Robens, Carsten
Arrazola, Iñigo Alt, Wolfgang Meschede, Dieter Lamata Manuel, Lucas Solano, Enrique Alberti, Andrea |
Departamento | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Fecha de publicación | 2024-07-19 |
Fecha de depósito | 2024-07-22 |
Publicado en |
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Resumen | Sampling from a quantum distribution can be exponentially hard for classical computers and yet could be performed efficiently by a noisy intermediate-scale quantum device. A prime example of a distribution that is hard to ... Sampling from a quantum distribution can be exponentially hard for classical computers and yet could be performed efficiently by a noisy intermediate-scale quantum device. A prime example of a distribution that is hard to sample is given by the output states of a linear interferometer traversed by 𝑁 identical boson particles. Here, we propose a scheme to implement such a boson-sampling machine with ultracold atoms in a polarization-synthesized optical lattice. We experimentally demonstrate the basic building block of such a machine by revealing the Hong-Ou-Mandel interference of two bosonic atoms in a four-mode interferometer. To estimate the sampling rate for large 𝑁, we develop a theoretical model based on a master equation that accounts for particle losses, but does not include technical errors. Our results show that atomic samplers have the potential to achieve a quantum advantage over today's best supercomputers with 𝑁≳40. |
Agencias financiadoras | Junta de Andalucía Ministerio de Ciencia, Innovación y Universidades (MICINN). España National Natural Science Foundation of China Science and Technology Comission of Shanghai Municipality. China European Union (UE) |
Identificador del proyecto | P20-00617
US-1380840 PID2019104002GB-C21 PID2019-104002GB-C22 12075145 2019SHZDZX01-ZX04 SuperQuLAN 899354 |
Cita | Robens, C., Arrazola, I., Alt, W., Meschede, D., Lamata Manuel, L., Solano, E. y Alberti, A. (2024). Boson sampling with ultracold atoms in a programmable optical lattice. Physical Review A, 110 (1), 012615. https://doi.org/10.1103/physreva.110.012615. |
Ficheros | Tamaño | Formato | Ver | Descripción |
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PhysRevA.110.012615.pdf | 1.573Mb | [PDF] | Ver/ | |