Visualizing the emission of a single photon with frequency and time resolved spectroscopy
arXiv:2001.09737 · doi:10.22331/q-2021-06-10-474
Abstract
At the dawn of Quantum Physics, Wigner and Weisskopf obtained a full analytical description (a \textit{photon portrait}) of the emission of a single photon by a two-level system, using the basis of frequency modes (Weisskopf and Wigner, "Zeitschrift für Physik", 63, 1930). A direct experimental reconstruction of this portrait demands an accurate measurement of a time resolved fluorescence spectrum, with high sensitivity to the off-resonant frequencies and ultrafast dynamics describing the photon creation. In this work we demonstrate such an experimental technique in a superconducting waveguide Quantum Electrodynamics (wQED) platform, using single transmon qubit and two coupled transmon qubits as quantum emitters. In both scenarios, the photon portraits agree quantitatively with the predictions of the input-output theory and qualitatively with Wigner-Weisskopf theory. We believe that our technique allows not only for interesting visualization of fundamental principles, but may serve as a tool, e.g. to realize multi-dimensional spectroscopy in waveguide Quantum Electrodynamics.
arXiv comment18 pages, 10 figures including appendices
References in corpus (26)
- QuTiP 2: A Python framework for the dynamics of open quantum systems
- QuTiP: An open-source Python framework for the dynamics of open quantum systems
- Observation of high coherence in Josephson junction qubits measured in a three-dimensional circuit QED architecture
- Quantum information processing with superconducting circuits: a review
- Direct Measurement of the Quantum Wavefunction
- Ultrastrong coupling of a single artificial atom to an electromagnetic continuum in the nonperturbative regime
- Generating Single Microwave Photons in a Circuit
- Phase preserving amplification near the quantum limit with a Josephson Ring Modulator
- Input-output theory for waveguide QED with an ensemble of inhomogeneous atoms
- Observation of Dicke Superradiance for Two Artificial Atoms in a Cavity with High Decay Rate
- Quantum electrodynamics near a photonic band-gap
- Experimentally simulating the dynamics of quantum light and matter at ultrastrong coupling
- Quantum state tomography of an itinerant squeezed microwave field
- Experimental Tomographic State Reconstruction of Itinerant Microwave Photons
- Microwave-controlled generation of shaped single photons in circuit quantum electrodynamics
- Analog quantum simulation of the Rabi model in the ultra-strong coupling regime
- Probing the quantum vacuum with an artificial atom in front of a mirror
- Measurements on the reality of the wavefunction
- Novel E-beam lithography technique for in-situ junction fabrication: the controlled undercut
- Broadband Filters for Abatement of Spontaneous Emission in Circuit Quantum Electrodynamics
- Dynamics of coherent and incoherent emission from an artificial atom in a 1D space
- Can different quantum state vectors correspond to the same physical state? An experimental test
- Measuring the single-photon temporal-spectral wave function
- Time-Reversal Symmetrization of Spontaneous Emission for High Fidelity Quantum State Transfer
- Dipolar Spin Models with Arrays of Superconducting Qubits
- Multiphoton Scattering Tomography with Coherent States