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April 23, 2026Annalen der Physik

Simulation of Single‐Qubit Gates in Spin–Orbit Coupled Bose–Einstein Condensate With Cubic–Quintic Nonlinearity by Nonlinear Perturbations

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Authors

PGPrithwish GhoshKDKajal Krishna DeyGSGolam Ali Sekh

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Overview

Numerical simulation examines qubit states in Bose–Einstein condensates, indicating new gate possibilities.

Key Points

  • This research aims to explore the dynamics of qubit gates in spin-orbit coupled Bose-Einstein condensates with nonlinear interactions.
  • Employs numerical simulation and mean-field approximation to analyze eigen states.
  • Investigates the effects of three different nonlinear perturbations on qubit states.
  • Calculates the unitary operators for each perturbation.
  • Identifies that two low-lying Schrödinger cat states remain degenerate up to a specific Raman coupling strength.
  • Demonstrates that nonlinear perturbations lead to varying rotations of qubit states on the Bloch sphere.
  • Suggests potential for realizing various gates in ultra-cold atomic systems.

Cite This Study

Ghosh et al. (2026) studied this question.

synapsesocial.com/papers/69e9b85585696592c86eb990https://doi.org/10.1002/andp.202500625
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