Shortcuts to adiabaticity with a quantum control field

• URL: http://arxiv.org/abs/2508.06304v1
• Date: Fri, 08 Aug 2025 13:29:59 GMT
• Title: Shortcuts to adiabaticity with a quantum control field
• Authors: Emma C. King, Giovanna Morigi, Raphaël Menu,
• Abstract summary: We argue that non-adiabatic transitions can be suppressed by autonomous quantum dynamics.<n>This is a prime example of control where the quantum properties of the control fields are key for implementing shortcuts to adiabaticity.
• Score: 0.0
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: Quantum adiabatic dynamics is the crucial element of adiabatic quantum computing and quantum annealing. Shortcuts to adiabaticity enable acceleration of the computational time by suppressing unwanted non-adiabatic processes with designed classical fields. Here, we consider quantum state transfer in the Landau-Zener model, which exemplifies the key elements of quantum adiabatic dynamics. We argue that non-adiabatic transitions can be suppressed by autonomous quantum dynamics, which involves coupling the Landau-Zener qubit to a second quantum system. By tuning the coupling strength, the composite quantum dynamics can reduce the probability of unwanted processes by more than two orders of magnitude. This is a prime example of control where the quantum properties of the control fields are key for implementing shortcuts to adiabaticity.

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