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This study demonstrates how engineering nonreciprocal dissipative channels can significantly accelerate the cooling and state preparation in continuous-variable quantum systems. By enabling rapid energy transfer into the environment while suppressing oscillations between modes, this technique offers a robust thermodynamic shortcut for low-temperature quantum information processing. The findings advance our ability to control nonequilibrium relaxation dynamics without relying on conventional thermalization limits.
Nonreciprocal Channel Accelerates Quantum System Cooling, Study Finds
A new study reveals a nonreciprocal channel accelerates quantum system cooling, building on recent work with the quantum Mpemba effect.
Researchers find a transient engineered nonreciprocal dissipative channel can provide a shortcut that accelerates convergence to the target reciprocal nonequilibrium steady state for the considered two-mode model and initial states. Using interacting bosonic modes, the team demonstrated a rapid, one-way transfer of energy into the environment by activating this channel, effectively suppressing prolonged energy oscillations between modes. This acceleration in relaxation is surprisingly robust and independent of the direction of the nonreciprocity. These results offer a powerful thermodynamic technique for rapid state preparation and cooling in continuous-variable quantum systems, a capability particularly critical for low-temperature quantum information processing, according to the…
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