Measuring a photonic qubit without destroying it

Abstract

Measuring the polarisation of a single photon typically results in its destruction. We propose, demonstrate, and completely characterise a \emph{quantum non-demolition} (QND) scheme for realising such a measurement non-destructively. This scheme uses only linear optics and photo-detection of ancillary modes to induce a strong non-linearity at the single photon level, non-deterministically. We vary this QND measurement continuously into the weak regime, and use it to perform a non-destructive test of complementarity in quantum mechanics. Our scheme realises the most advanced general measurement of a qubit: it is non-destructive, can be made in any basis, and with arbitrary strength.

4 pages, 3 figures

References in corpus (10)

• Quantum Cryptography
• Measurement of conditional phase shifts for quantum logic
• Entangled state quantum cryptography: Eavesdropping on the Ekert protocol
• High efficiency entangled photon pair collection in type II parametric fluorescence
• Single-photon quantum nondemolition detectors constructed with linear optics and projective measurements
• Quantitative wave-particle duality and non-erasing quantum erasure
• Entanglement purification for Quantum Computation
• Extracting joint weak values with local, single-particle measurements
• Quantum Computing with Quantum Dots on Linear Supports
• Quantum Communication Protocol Employing Weak Measurements

Cited by in corpus (74)

• Review article: Linear optical quantum computing
• Silica-on-Silicon Waveguide Quantum Circuits
• Quantum Error Correction for Beginners
• Photonic quantum information processing: a concise review
• Quantum process tomography of a controlled-NOT gate
• Complete hyperentangled-Bell-state analysis for quantum communication
• Quantum weak values
• Violation of the Leggett-Garg inequality with weak measurements of photons
• Multimode quantum interference of photons in multiport integrated devices
• Local and Distributed Quantum Computation
• Optimal nonlocal multipartite entanglement concentration based on projection measurements
• Initialization by measurement of a two-qubit superconducting circuit
• Experimental feedback control of quantum systems using weak measurements
• Efficient multipartite entanglement purification with the entanglement link from a subspace
• High-fidelity operation of quantum photonic circuits
• Quantum Non-demolition Measurements on Qubits
• Paradox in Wave-Particle Duality
• Reversing quantum trajectories with analog feedback
• Experimental violation of the Leggett-Garg inequality under decoherence
• Quantum Control of a Single Qubit
• Optical Quantum Computation
• Experimental realization of a minimal disturbance quantum measurement
• Efficient hyperconcentration of nonlocal multipartite entanglement via the cross-Kerr nonlinearity
• Complementarity and quantum walks
• An All Optical Fibre Quantum Controlled-NOT Gate
• Self-assisted complete maximally hyperentangled state analysis via the cross-Kerr nonlinearity
• Multipartite entanglement purification with quantum nondemolition detectors
• Hardy's paradox and violation of a state-independent Bell inequality in time
• Quantum Nondemolition Measurement of a Kicked Qubit
• Highly nonclassical photon statistics in parametric down conversion
• Dissipative and Non-dissipative Single-Qubit Channels: Dynamics and Geometry
• Weak measurements and the joint estimation of phase and phase diffusion
• Estimation of a quantum interaction parameter using weak measurements: Theory and experiment
• Linear-optical programmable quantum router
• Uncertainty Relations for Positive Operator Valued Measures
• Fluctuation Theorems for Continuous Quantum Measurement and Absolute Irreversibility
• Avoiding Loopholes with Hybrid Bell-Leggett-Garg Inequalities
• Entanglement-Enhanced Quantum Key Distribution
• Observing the "quantum Cheshire cat" effect with noninvasive weak measurement
• Priority Choice Experimental Two-qubit Tomography: Measuring One by One All Elements of Density Matrices
• Testing sequential quantum measurements: how can maximal knowledge be extracted?
• Measuring coherence of quantum measurements
• Entanglement-assisted scheme for nondemolition detection of the presence of a single photon
• Information/disturbance trade-off in continuous variable Gaussian systems
• Phase Diffusion in Quantum Dissipative Systems
• Entanglement Dynamics in Two-Qubit Open System Interacting with a Squeezed Thermal Bath via Quantum Nondemolition interaction
• Realism-information complementarity in photonic weak measurements
• Quantum Non-Demolition Test of Bipartite Complementarity
• Quantum Correlation Sharing: A Review On Recent Progress From Nonlocality To Other Non-Classical Correlations
• Nontrilocality: Exploiting nonlocality from three particle systems
• Single-shot quantum memory advantage in the simulation of stochastic processes
• Purifying entanglement of noisy two-qubit states via entanglement swapping
• Direct observation of temporal coherence by weak projective measurements of photon arrival time
• Quantum non-demolition measurement saturates fidelity trade-off
• Hectometer Revivals of Quantum Interference
• Implementing generalized measurements with superconducting qubits
• Local measurement uncertainties impose a limit on non-local quantum correlations
• Quantitative complementarity between local and nonlocal character of quantum states in a three-qubit system
• Quantum information technology with Sagnac interferometer: Interaction-free measurement, quantum key distribution and quantum secret sharing
• Experimental noiseless linear amplification using weak measurements
• Entangling efficiency of linear-optical quantum gates
• Controlling wave-particle duality with quantum entanglement
• Comment on: "Measuring a Photonic Qubit without Destroying It"
• Scalable symmetry detector and its applications by using beam splitters and weak nonlinearities
• Quasiprobability distributions with weak measurements
• Phase-dependent which-way information
• Generalized quantum measurements. Part I: Information properties of soft quantum measurements
• Quantum state tomography on closed timelike curves using weak measurements
• Leggett-Garg inequalities with deformed Pegg-Barnett phase observables
• Interplay between strong and weak measurement: Comparison of three experimental approaches to weak value estimation
• Optimized Superconducting Nanowire Single Photon Detectors to Maximize Absorptance
• Testing time order and Leggett-Garg inequalities with noninvasive measurements on public quantum computers
• Feasible logic Bell-state analysis with linear optics
• Device-independent secure correlations in sequential quantum scenarios