Journal
APL PHOTONICS
Volume 6, Issue 2, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/5.0037327
Keywords
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Funding
- European Union Horizon 2020 programme under European Research Council [ERC] [694683]
- Ontario's Early Research Award (ERA)
- Canada First Research Excellence Fund (CFREF)
- IMT-Bucharest Core Program MICRO-NANO-SIS-PLUS - MCE [14N/2019, PN 19160102]
- Romanian Ministry of Research and Innovation, PCCDI-UEFISCDI within PNCDI III [PN-III-P1-1.2-PCCDI-2017-0338/79PCCDI/2018]
- European Union Horizon 2020 program, under European Research Council (ERC) Advanced Grant (AdG) NOQIA [833801]
- European Union Horizon 2020 program, under European Research Council (ERC) Advanced Grant (AdG) FETOPEN OPTOLogic [899794]
- Spanish Ministry of Economy and Competitiveness under the Severo Ochoa program for Centres of Excellence in RD [CEX2019000910-S]
- Spanish Ministry of Economy and Competitiveness under the Plan National FISICATEAMO
- Spanish Ministry of Economy and Competitiveness under the FIDEUA [PID2019-106901GB-I00/10.13039/501100011033]
- Formacion de personal investigador (FPI)
- Generalitat de Catalunya under the AGAUR Grant [2017 SGR 1341]
- CERCA program (ERDF Operational Program of Catalonia 2014-2020)
- MINECO-EU QUANTERA MAQS (State Research Agency (AEI) [PCI2019-111828-2/10.13039/501100011033]
- National Science Centre, Poland-Symfonia [2016/20/W/ST4/00314]
- Fundacio Privada Cellex
- Fundacio Mir-Puig
- La Caixa Foundation [100010434, LCF/BQ/PR20/11770012]
- Canada Research Chairs (CRC)
- QuantumCAT (ERDF Operational Program of Catalonia 2014-2020) [U16-011424]
- European Research Council (ERC) [833801, 694683] Funding Source: European Research Council (ERC)
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This paper successfully establishes a photonic quantum walk in the presence of a synthetic gauge field and explores its dynamics, focusing on the ballistic spreading behavior when the energy gaps are extremely small.
Quantum walks are processes that model dynamics in coherent systems. Their experimental implementations proved to be key to unveiling novel phenomena in Floquet topological insulators. Here, we realize a photonic quantum walk in the presence of a synthetic gauge field, which mimics the action of an electric field on a charged particle. By tuning the energy gaps between the two quasi-energy bands, we investigate intriguing system dynamics characterized by the interplay between Bloch oscillations and Landau-Zener transitions. When both gaps at quasi-energy values of 0 and pi are vanishingly small, the Floquet dynamics follows a ballistic spreading.
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