Coherence and multimode correlations from vacuum fluctuations in a microwave superconducting cavity
arXiv:1512.05561 · doi:10.1038/ncomms12548
Abstract
The existence of vacuum fluctuations is one of the most important predictions of modern quantum field theory. In the vacuum state, fluctuations occurring at different frequencies are uncorrelated. However, if a parameter in the Lagrangian of the field is modulated by an external pump, vacuum fluctuations stimulate spontaneous downconversion processes, creating squeezing between modes symmetric with respect to half of the frequency of the pump. Here we show that by double parametric pumping of a superconducting microwave cavity, it is possible to generate another fundamental type of correlation, namely coherence between photons in separate frequency modes. The coherence correlations are tunable by the phases of the pumps and are established by a quantum fluctuation that stimulates the simultaneous creation of two photon pairs. Our analysis indicates that the origin of this vacuum-induced coherence is the absence of 'which-way' information in the frequency space.
References in corpus (39)
- Quantum information with continuous variables
- Three qubits can be entangled in two inequivalent ways
- Introduction to Quantum Noise, Measurement and Amplification
- Atomic physics and quantum optics using superconducting circuits
- Quantum Theory of Cavity-Assisted Sideband Cooling of Mechanical Motion
- Observation of the Dynamical Casimir Effect in a Superconducting Circuit
- Quantum Imaging with Undetected Photons
- Amplification and squeezing of quantum noise with a tunable Josephson metamaterial
- A Delayed Choice Quantum Eraser
- Stimulating uncertainty: Amplifying the quantum vacuum with superconducting circuits
- Experimental realization of multipartite entanglement of 60 modes of a quantum optical frequency comb
- Phase preserving amplification near the quantum limit with a Josephson Ring Modulator
- Dynamical Casimir effect in a Josephson metamaterial
- Photon State Tomography for Two-Mode Correlated Itinerant Microwave Fields
- Delayed-choice gedanken experiments and their realizations
- Multipartite entanglement in three-mode Gaussian states of continuous variable systems: Quantification, sharing structure and decoherence
- Real time demonstration of high bitrate quantum random number generation with coherent laser light
- Quantum state tomography of an itinerant squeezed microwave field
- Separability Properties of Three-mode Gaussian States
- Discrete, Tunable Color Entanglement
- Quantum limited amplification and entanglement in coupled nonlinear resonators
- Path Entanglement of Continuous-Variable Quantum Microwaves
- Stimulated Raman adiabatic passage in a three-level superconducting circuit
- Schemes for the observation of photon correlation functions in circuit QED with linear detectors
- Vacuum-Induced Transparency
- Unitarily localizable entanglement of Gaussian states
- Quantum superposition of a single microwave photon in two different "colour" states
- Direct Observation of Coherent Population Trapping in a Superconducting Artificial Atom
- Quantification and scaling of multipartite entanglement in continuous variable systems
- Extreme nonlocality with one photon
- Recent progress in quantum simulation using superconducting circuits
- Signal-to-pump back-action and self-oscillation in Double-Pump Josephson Parametric Amplifier
- Suppression of arbitrary internal coupling in a quantum register
- Characterization of a multimode coplanar waveguide parametric amplifier
- Generation of quantum steering and interferometric power in the Dynamical Casimir Effect
- Optical state engineering, quantum communication, and robustness of entanglement promiscuity in three-mode Gaussian states
- Towards universal quantum computation through relativistic motion
- Advanced Concepts in Josephson Junction Reflection Amplifiers
- Realism and single-quanta nonlocality
Cited by in corpus (34)
- Quantum systems under frequency modulation
- Entanglement by Path Identity
- Entangling Bosonic Modes via an Engineered Exchange Interaction
- Electric field correlation measurements on the electromagnetic vacuum state
- Quantum Experiments and Graphs: Multiparty States as coherent superpositions of Perfect Matchings
- Generating Multimode Entangled Microwaves with a Superconducting Parametric Cavity
- Tripartite Genuine Non-Gaussian Entanglement in Three-Mode Spontaneous Parametric Downconversion
- Quantum imaging and metrology with undetected photons: a tutorial
- Correlations and entanglement of microwave photons emitted in a cascade decay
- Nonclassicality of induced coherence without induced emission
- Squeezing and multimode entanglement of surface acoustic wave phonons
- Coherence, Interference and Visibility
- Quantum-limited Parametric Amplification with Josephson Circuits in the Regime of Pump Depletion
- Side-wall spacer passivated sub-um Josephson junction fabrication process
- Two-way covert quantum communication in the microwave regime
- Twin Photon Correlations in Single-Photon Interference
- Entanglement, coherence, and redistribution of quantum resources in double spontaneous downconversion processes
- Broadband lumped-element Josephson parametric amplifier with single-step lithography
- Ultrastrong magnon-photon coupling and entanglement in superconductor/ferromagnet nanostructures
- Multipartite entanglement in a microwave frequency comb
- Characterizing mixed state entanglement through single-photon interference
- Analogue Gravity on a Superconducting Chip
- Time evolution of two harmonic oscillators with cross-Kerr interactions
- Generation and structuring of multipartite entanglement in Josephson parametric system
- Deterministic one-way logic gates on a cloud quantum computer
- Entanglement degradation of cavity modes due to the dynamical Casimir effect
- Versatile Super-Sensitive Metrology Using Induced Coherence
- Non-gaussian Entanglement Swapping between Three-Mode Spontaneous Parametric Down Conversion and Three Qubits
- Listening to the quantum vacuum: a perspective on the dynamical Casimir effect
- Quantum gate description for induced coherence without induced emission and related phenomena
- Implementation of traveling odd Schrdinger cat states in circuit-QED
- Two-time correlators for propagating squeezed microwave in transients
- Population trapping in the excited states using vacuum-induced coherence and adiabatic process
- Nonreciprocal flow of fluctuations, populations and correlations between doubly coupled bosonic modes