Derives an analytical mapping from hybrid unitary-projective qutrit evolution to target non-Hermitian two-body interactions for pseudo-spins in a Zeno subspace, validated numerically.
Measurement and Control of the Complex Berry Phase in a Quantum System
2 Pith papers cite this work. Polarity classification is still indexing.
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Pith papers citing it
abstract
The Berry phase is a geometric phase acquired during adiabatic evolution over a closed loop in parameter space. It plays an essential role in geometric quantum gates and other phase-based protocols. In non-Hermitian systems, the Berry phase is complex, introducing fundamentally new geometric effects, including state amplification. In this work, we report experimental measurement of both the real and imaginary components of a Berry phase in a fully quantum system using a superconducting transmon circuit with engineered dissipation. We also demonstrate the path-dependent effects of the imaginary part on the dissipation and its utility in the implementation of non-unitary quantum control. These findings establish a clear geometric distinction between the real and imaginary components of the Berry phase and experimentally confirm the unique adiabatic behavior of non-Hermitian quantum systems.
fields
quant-ph 2years
2026 2verdicts
UNVERDICTED 2representative citing papers
Experimental measurement of the complex Berry phase in a superconducting quantum system with dissipation, confirming its real and imaginary components and demonstrating utility for non-unitary control.
citing papers explorer
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Engineering of non-Hermitian interactions in digital qudit quantum simulators
Derives an analytical mapping from hybrid unitary-projective qutrit evolution to target non-Hermitian two-body interactions for pseudo-spins in a Zeno subspace, validated numerically.
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Measurement and Control of the Complex Berry Phase in a Quantum System
Experimental measurement of the complex Berry phase in a superconducting quantum system with dissipation, confirming its real and imaginary components and demonstrating utility for non-unitary control.