Keywords :
Adiabaticity; Auxiliary control; Closed-form expression; Control fields; Its efficiencies; Many-body state; Quantum oscillators; Time dependent; Tomonaga Luttinger liquid; Electronic, Optical and Magnetic Materials; Condensed Matter Physics; Quantum Physics; cond-mat.quant-gas; Physics - Strongly Correlated Electrons
Abstract :
[en] Shortcuts to adiabaticity (STA) make the fast preparation of many-body states possible, circumventing the limitations of adiabatic strategies. We propose a fast STA protocol for generating interacting states in the Tomonaga-Luttinger liquid by counterdiabatic driving, stirring the dynamics with an auxiliary control field. To this end, we exploit the equivalence between the time-dependent Tomonaga-Luttinger liquid and an ensemble of quantum oscillators with driven mass and frequency. We specify the closed-form expression of the counterdiabatic control and demonstrate its efficiency in suppressing excitations.
Funding text :
Acknowledgments. We are indebted to Bal\u00E1z D\u00F3ra and Per Moosavi for insightful comments. We would like to thank Masahito Ueda, Federico Balducci, I\u00F1igo L. Egusquiza, Apollonas S. Matsoukas Roubeas, Armin Rahmani, and Jing Yang for the interesting discussions. This project was supported by the Luxembourg National Research Fund (FNR Grant No. 501100001866-16434093). It has received funding from the QuantERA II Joint Programme with co-funding from the European Union's Horizon 2020 research and innovation programme.
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