Dynamics of an ultra-strongly-coupled system interacting with a driven nonlinear resonator
arXiv:1705.08688 · doi:10.1038/s41598-019-56866-1
Abstract
In the ultra-strong coupling regime of a light-matter system, the ground state exhibits non-trivial entanglement between the atom and photons. For the purposes of exploring the measurement and control of this ground state, here we analyze the dynamics of such an ultra-strongly-coupled system interacting with a driven nonlinear resonator acting as a measurement apparatus. Interestingly, although the coupling between the atom and the nonlinear resonator is much smaller than the typical energy scales of the ultra-strongly-coupled system, we show that we can generate a strong correlation between the nonlinear resonator and the light-matter system. A subsequent coarse- grained measurement on the nonlinear resonator significantly affects the light-matter system, and the phase of the light changes depending on the measurement results. Also, we investigate the conditions for when the nonlinear resonator can be entangled with the ultra-strongly coupled system, which is the mechanism that allows us to project the ground state of the ultra-strongly coupled system into a non-energy eigenstate.
arXiv comment10 pages, 11 figures
References in corpus (57)
- Introducing Quantum Discord
- Classical, quantum and total correlations
- 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
- Hybrid quantum circuits: Superconducting circuits interacting with other quantum systems
- Ultrastrong coupling between light and matter
- Ultrastrong coupling regimes of light-matter interaction
- Dynamical decoupling and noise spectroscopy with a superconducting flux qubit
- Natural and artificial atoms for quantum computation
- Superconducting qubit-oscillator circuit beyond the ultrastrong-coupling regime
- Optimized Dynamical Decoupling in a Model Quantum Memory
- Strong Coupling of a Spin Ensemble to a Superconducting Resonator
- The Flux Qubit Revisited to Enhance Coherence and Reproducibility
- Ultrastrong coupling of a single artificial atom to an electromagnetic continuum in the nonperturbative regime
- Dissipation and Ultrastrong Coupling in Circuit QED
- Qubit-oscillator systems in the ultrastrong-coupling regime and their potential for preparing nonclassical states
- An RF-Driven Josephson Bifurcation Amplifier for Quantum Measurements
- Quantum trajectory approach to circuit QED: Quantum jumps and the Zeno effect
- Hybrid quantum devices and quantum engineering
- Low-decoherence flux qubit
- Coupling Nitrogen Vacancy Centers in Diamond to Superconducting Flux Qubits
- Millisecond charge-parity fluctuations and induced decoherence in a superconducting qubit
- Quantum non-demolition measurement of a superconducting two-level system
- Resolution of Gauge Ambiguities in Ultrastrong-Coupling Cavity QED
- A Single Photon Can Simultaneously Excite Two or More Atoms
- Deterministic quantum nonlinear optics with single atoms and virtual photons
- Spin squeezing of a cold atomic ensemble with the nuclear spin of one-half
- Multiphoton Quantum Rabi Oscillations in Ultrastrong Cavity QED
- Dispersive measurements of superconducting qubit coherence with a fast, latching readout
- Protected quantum computation with multiple resonators in ultrastrong coupling circuit QED
- Single-photon-driven high-order sideband transitions in an ultrastrongly coupled circuit quantum electrodynamics system
- Quantum Nonlinear Optics without Photons
- Dynamics and quantum Zeno effect for a qubit in either a low- or high-frequency bath: A non-markovian approach beyond the rotating-wave approximation
- Amplified opto-mechanical transduction of virtual radiation pressure
- A qubit strongly-coupled to a resonant cavity: asymmetry of the spontaneous emission spectrum beyond the rotating wave approximation
- Frequency conversion in ultrastrong cavity QED
- Observation of collective coupling between an engineered ensemble of macroscopic artificial atoms and a superconducting resonator
- Interaction of Mechanical Oscillators Mediated by the Exchange of Virtual Photon Pairs
- Coarsening Measurement References and the Quantum-to-Classical Transition
- Cutting Feynman Loops in Ultrastrong Cavity QED: Stimulated Emission and Reabsorption of Virtual Particles Dressing a Physical Excitation
- Ancillary qubit spectroscopy of cavity (circuit) QED vacua
- Long-lasting Quantum Memories: Extending the Coherence Time of Superconducting Artificial Atoms in the Ultrastrong-Coupling Regime
- Quantum limited amplification with a nonlinear cavity detector
- Parity-dependent State Engineering and Tomography in the ultrastrong coupling regime
- Continuous quantum nondemolition measurement of the transverse component of a qubit
- The Quantum state diffusion model and the driven damped nonlinear oscillator
- Multi-output microwave single-photon source using superconducting circuits with longitudinal and transverse couplings
- Backaction of a driven nonlinear resonator on a superconducting qubit
- Observing pure effects of counter-rotating terms without ultrastrong coupling: A single photon can simultaneously excite two qubits
- Analytical ground state for the Jaynes-Cummings model with the ultrastrong coupling
- Weak and strong measurement of a qubit using a switching-based detector
- The information about the state of a qubit gained by a weakly coupled detector
- Amplified and tunable transverse and longitudinal spin-photon coupling in hybrid circuit-QED
- Quantum Time-evolution in Qubit Readout Process with a Josephson Bifurcation Amplifier
- Weak Qubit Measurement with a Nonlinear Cavity: Beyond Perturbation Theory
- The information about the state of a charge qubit gained by a weakly coupled quantum point contact
- Dissipation of the Rabi model beyond the rotating wave approximation: Quasi-degenerate qubit and ultra-strong coupling