In a PT-symmetric pair of coupled oscillators, Gaussian discord persists stationarily above a loss threshold and is stable in the broken phase for equal gain/loss rates.
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WYSI detects quantum phase transitions in the Heisenberg XYZ chain with DM interaction, revealing a factorization volume in the gapless chiral phase and a three-phase diagram.
Generalizing primordial gravitational waves to a three-mode Bogoliubov transformation yields classical behavior via quantum discord for large squeeze parameters when only two of three modes are considered, while the quantum Poincare sphere shows non-classicality for positive squeeze or nonzero cosθ,
citing papers explorer
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Stationary quantum correlations in a system with mean-field PT symmetry
In a PT-symmetric pair of coupled oscillators, Gaussian discord persists stationarily above a loss threshold and is stable in the broken phase for equal gain/loss rates.
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Criticality and factorization in the Heisenberg chain with Dzyaloshinskii-Moriya interaction
WYSI detects quantum phase transitions in the Heisenberg XYZ chain with DM interaction, revealing a factorization volume in the gapless chiral phase and a three-phase diagram.
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Non-classicality of Primordial Gravitational Waves in Three-mode Representation Through Quantum Poincare Sphere
Generalizing primordial gravitational waves to a three-mode Bogoliubov transformation yields classical behavior via quantum discord for large squeeze parameters when only two of three modes are considered, while the quantum Poincare sphere shows non-classicality for positive squeeze or nonzero cosθ,