Under identical experimental conditions, photon addition outperforms photon subtraction in multi-mode thermal and sub-Poissonian beams, while photon subtraction outperforms photon addition in multi-mode twin beams; temporal correlations in compound twin beams enable near-ideal photon addition.
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Compound beams for direct experimental comparison of quantum operations
Under identical experimental conditions, photon addition outperforms photon subtraction in multi-mode thermal and sub-Poissonian beams, while photon subtraction outperforms photon addition in multi-mode twin beams; temporal correlations in compound twin beams enable near-ideal photon addition.