2026/07/22 by Anonymous, Pritam Chattopadhyay, A. G. Kofman +1
Computer Science · Physics and Astronomy · Biochemistry, Genetics and Molecular Biology · #Quantum Information and Cryptography #Mechanical and Optical Resonators #Advanced Electron Microscopy Techniques and Applications
paper · pdf · doi:10.1103/mxnp-zvth
The entanglement of quantum systems is commonly restricted by their coupling Hamiltonian and initial state properties. Here, we prove by exact analysis of tunnel-coupled bosonic field modes, that factorized multi-boson two-mode states can become fully entangled via stroboscopic sign flips of the two-mode coupling. Their entanglement can exponentially grow with the number of flips. With the exception of specific prohibitive states that are invariant under such sign-flip control, this effect universally applies to two-mode state preparation. Remarkably, this linear control may provide entanglement resources for diverse quantum technological applications by readily available means.