Generalized constraints on quantum amplification

Abstract

We derive quantum constraints on the minimal amount of noise added in linear amplification involving input or output signals whose component operators do not necessarily have c-number commutators, as is the case for fermion currents. This is a generalization of constraints derived for the amplification of bosonic fields whose components posses c-number commutators.

4 pages, 1 figure, submitted to Physical Review Letters

References in corpus (3)

• Quantum-Limited Measurement and Information in Mesoscopic Detectors
• Quantum-Limited Position Detection and Amplification: A Linear Response Perspective
• Chaos and energy spreading for time-Dependent Hamiltonians, and the various Regimes in the theory of Quantum Dissipation

Cited by in corpus (15)

• Introduction to Quantum Noise, Measurement and Amplification
• Coherence oscillations in dephasing by non-Gaussian shot noise
• Nonsymmetrized Correlations in Quantum Noninvasive Measurements
• Multiple quasiparticle Hall spectroscopy investigated with a resonant detector
• Quantum Critical Detector : Amplifying Weak Signals Using First-Order Dynamical Quantum Phase Transitions
• Formulation of Time-Resolved Counting Statistics Based on a Positive-Operator-Valued Measure
• Models of mesoscopic time-resolved current detection
• Engineering First-Order Quantum Phase Transitions for Weak Signal Detection
• On Nonlinear Amplification: Improved Quantum Limits for Photon Counting
• Noninvasive Quantum Measurement of Arbitrary Operator Order by Engineered Non-Markovian Detectors
• How to Project onto an Arbitrary Single-Photon Wavepacket
• Finite frequency noise spectroscopy for fractional Hall states at ν = 5/2
• Quantum noise minimization in transistor amplifiers
• Non-equilibrium Optical Conductivity in Materials with Localized Electronic States
• Deterministic noiseless amplification of coherent states