Turning off quantum duality
X.-F. Qian, K. Konthasinghe, S. K. Manikandan, D. Spiecker, A. N. Vamivakas, J. H. Eberly
Abstract
This paper shows that photonic self-entanglement, measured by concurrence C, can be controlled in a two-beam interference experiment and can be used to amplify or attenuate duality or turn it completely off. The observed data means that visibility V (wave nature) and distinguishability D (particle nature) can be counter-intuitively simultaneously absent in an active interference pattern, as expressed in the three-way quantum coherence identity V${}^{2}$+D${}^{2}$+C${}^{2}$=1.
Topics & Concepts
Duality (order theory)Coherence (philosophical gambling strategy)QuantumPhysicsInterference (communication)Quantum mechanicsVisibilityQuantum entanglementIdentity (music)Quantum interferenceMathematicsQuantum systemWave–particle dualityPhotonicsStatistical physicsTheoretical physicsBeam splitterCoherence timeDegree of coherenceAmplitudeComputer scienceAmplitude damping channelTopology (electrical circuits)PhotonQuantum stateQuantum discordQuantum Mechanics and ApplicationsQuantum Information and CryptographyQuantum Mechanics and Non-Hermitian Physics