Linear dependence among the diagonal components of Hamiltonian derivatives creates a slow parameter direction with O(t^0) scaling, obstructing simultaneous t^{-2} multiparameter quantum estimation.
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6 Pith papers cite this work. Polarity classification is still indexing.
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quant-ph 6years
2026 6representative citing papers
Introduces S-PPM modulation and IS-CPN receiver that maps squeezed states to coherent-state PPM for closed-form error rates and outperforms conventional CPN under energy constraints and phase noise.
General probe-environment correlations enable non-completely positive encodings that surpass the thermal-state bound in quantum thermometry precision.
The inverse-squeezing Kennedy receiver converts transmitter-side squeezing into enhanced photon-number contrast, surpassing the standard quantum limit for squeezed-state BPSK near mean photon number N=0.3 and the coherent-state Helstrom bound near N=0.4.
A (2,m)-threshold quantum data-hiding scheme is constructed where any pair of m parties can perfectly recover a hidden bit via joint measurement, while LOCC by all parties reveals arbitrarily little information.
Integrating quantum catalysis, entanglement, and squeezing in a distributed quantum network yields better multiphase sensing precision than any two alone, approaching the Heisenberg limit, with partial catalysis outperforming global catalysis in both ideal and lossy cases.
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Geometric obstructions to quadratic time scaling in multiparameter quantum estimation
Linear dependence among the diagonal components of Hamiltonian derivatives creates a slow parameter direction with O(t^0) scaling, obstructing simultaneous t^{-2} multiparameter quantum estimation.
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Inverse-squeezing receivers for squeezed-state pulse-position modulation under ideal and phase-diffusion conditions
Introduces S-PPM modulation and IS-CPN receiver that maps squeezed states to coherent-state PPM for closed-form error rates and outperforms conventional CPN under energy constraints and phase noise.
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Surpassing thermal-state limit in thermometry via non-completely positive quantum encoding
General probe-environment correlations enable non-completely positive encodings that surpass the thermal-state bound in quantum thermometry precision.
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Near-optimal discrimination of displaced squeezed binary signals using displacement, inverse-squeezing, and photon-number-resolving detection
The inverse-squeezing Kennedy receiver converts transmitter-side squeezing into enhanced photon-number contrast, surpassing the standard quantum limit for squeezed-state BPSK near mean photon number N=0.3 and the coherent-state Helstrom bound near N=0.4.
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(2,m)-threshold quantum data hiding
A (2,m)-threshold quantum data-hiding scheme is constructed where any pair of m parties can perfectly recover a hidden bit via joint measurement, while LOCC by all parties reveals arbitrarily little information.
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Quantum-enhanced distributed network sensing using multiple quantum resources
Integrating quantum catalysis, entanglement, and squeezing in a distributed quantum network yields better multiphase sensing precision than any two alone, approaching the Heisenberg limit, with partial catalysis outperforming global catalysis in both ideal and lossy cases.