On-chip microwave coherent source with in-situ control of the photon number distribution
arXiv:2406.10597 · doi:10.1038/s42005-025-02219-6
Abstract
Coherent photon sources are key elements in different applications, ranging from quantum sensing to quantum computing. The possibility of designing and engineering superconducting circuits behaving like artificial atoms supports the realization of quantum optics protocols, including microwave photons generation. Here we propose and theoretically investigate a design that allows a tunable photon injection directly on-chip. Our approach enables control of the emission via an external knob while preserving, in principle, the stability and linewidth characteristics. This is achieved by replacing the conventional capacitive link between the source and the reservoir with a tunable coupler, with the advantage of avoiding direct dynamical manipulation of the photon source dynamics, providing pulsed control of the emission. We validate the dynamical control of the generated state under the effect of an external flux threading the tunable coupler and discuss the possibility of employing this scheme also in the context of multiple bosonic reservoirs.
arXiv comment18 pages, 7 figures
References in corpus (48)
- Quantum Computing in the NISQ era and beyond
- Supplementary information for "Quantum supremacy using a programmable superconducting processor"
- Quantum sensing
- Circuit Quantum Electrodynamics: Coherent Coupling of a Single Photon to a Cooper Pair Box
- Charge insensitive qubit design derived from the Cooper pair box
- QuTiP: An open-source Python framework for the dynamics of open quantum systems
- Circuit Quantum Electrodynamics
- A Quantum Engineer's Guide to Superconducting Qubits
- Introduction to Quantum Noise, Measurement and Amplification
- Encoding a qubit in an oscillator
- Microwave photonics with superconducting quantum circuits
- Observation of quantum state collapse and revival due to the single-photon Kerr effect
- Controlling the spontaneous emission of a superconducting transmon qubit
- Generating Single Microwave Photons in a Circuit
- Real-time quantum error correction beyond break-even
- A tunable coupling scheme for implementing high-fidelity two-qubit gates
- Observation of Resonant Photon Blockade at Microwave Frequencies using Correlation Function Measurements
- Decoherence of flux qubits due to 1/f flux noise
- Fault-Tolerant Measurement-Based Quantum Computing with Continuous-Variable Cluster States
- Quantum Computing with Continuous-Variable Clusters
- Single artificial-atom lasing
- CMOS-based cryogenic control of silicon quantum circuits
- Secure quantum key distribution using squeezed states
- Bosonic quantum error correction codes in superconducting quantum circuits
- Observing the intrinsic linewidth of a quantum-cascade laser: beyond the Schawlow-Townes limit
- Quantum--Classical Interface Based on Single Flux Quantum Digital Logic
- Proposal for Gravitational-Wave Detection Beyond the Standard Quantum Limit via EPR Entanglement
- Microwaves in Quantum Computing
- Semiconductor double quantum dot micromaser
- Digital coherent control of a superconducting qubit
- Random access quantum information processors
- Demonstration of a Tuneable Coupler for Superconducting Qubits Using Coherent, Time Domain, Two-Qubit Operations
- Holonomic quantum control with continuous variable systems
- Demonstration of an ac Josephson junction laser
- Electromagnetically-induced transparency with amplification in superconducting circuits
- A Single-Cooper-Pair Josephson Laser
- Practical quantum computing on encrypted data
- Quantum to Classical Transition in a Single-Ion Laser
- Single-artificial-atom lasing using a voltage-biased superconducting charge qubit
- Dressed-state amplification by a superconducting qubit
- Lasing without Inversion in Circuit Quantum Electrodynamics
- In situ characterization of qubit control lines: a qubit as a vector network analyzer
- Tunable coupler to fully decouple and maximally localize superconducting qubits
- Theory of the Josephson Junction Laser
- Discriminating the Phase of a Coherent Tone with a Flux-Switchable Superconducting Circuit
- Proposal for a continuous wave laser with linewidth well below the standard quantum limit
- Thermally pumped on-chip maser
- Single-atom maser with engineered circuit for population inversion