Quantum mechanics

Bell nonlocality and entanglement in many-body systems

Quantum metrology

Matter-wave interferometry with Bose-Einstein condensates

Atom-light interferometry with BEC's in optical cavities


1) One-axis twisting as a method of generating many-body Bell correlations
M Płodzień, M Lewenstein, E Witkowska, J Chwedeńczuk
Phys. Rev. Lett. 129, 250402 (2022)

2) Many-body Bell inequalities for bosonic qubits
Jan Chwedeńczuk
Sci. Post Phys. Core 5, 025 (2022)


1) Many-Body Nonlocality as a Resource
for Quantum-Enhanced Metrology
A. Niezgoda and J. Chwedeńczuk
Phys. Rev. Lett. 126, 210506 (2021)

2) Cooperatively enhanced precision of hybrid light-matter sensors
Artur Niezgoda, Jan Chwedeńczuk, Tomasz Wasak, and Francesco Piazza
Phys. Rev. A 104, 023315 (2021)