PT-symmetric non-Hermitian quantum many-body system using ultracold atoms in an optical lattice with controlled dissipation

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We report our realization of a parity-time (PT) symmetric non-Hermitian many-body system using cold atoms with dissipation.

• After developing a theoretical framework on PT-symmetric many-body systems using ultracold atoms in an optical lattice with controlled dissipation, we describe our experimental setup utilizing one-body atom loss as dissipation with special emphasis on calibration of important system parameters.
• We discuss loss dynamics observed experimentally.