Single photons by quenching the vacuum
arXiv:1810.10857 · doi:10.1103/PhysRevLett.123.013601
Abstract
Heisenberg's uncertainty principle implies that the quantum vacuum is not empty but fluctuates. These fluctuations can be converted into radiation through nonadiabatic changes in the Hamiltonian. Here, we discuss how to control this vacuum radiation, engineering a single-photon emitter out of a two-level system (2LS) ultrastrongly coupled to a finite-band waveguide in a vacuum state. More precisely, we show the 2LS nonlinearity shapes the vacuum radiation into a nonGaussian superposition of even and odd cat states. When the 2LS bare frequency lays within the band gaps, this emission can be well approximated by individual photons. This picture is confirmed by a characterization of the ground and bound states, and a study of the dynamics with matrix product states and polaron Hamiltonian methods.
9 pages, 10 figures
References in corpus (12)
- Matrix Product States, Projected Entangled Pair States, and variational renormalization group methods for quantum spin systems
- Ultrastrong coupling between light and matter
- Beyond the Jaynes-Cummings model: circuit QED in the ultrastrong coupling regime
- Microwave photonics with superconducting quantum circuits
- Matrix Product Density Operators: Simulation of finite-T and dissipative systems
- Observation of the Bloch-Siegert Shift in a Qubit-Oscillator System in the Ultrastrong Coupling Regime
- Time evolution algorithms for Matrix Product States and DMRG
- Scattering in the ultrastrong regime: nonlinear optics with one photon
- A tunable Josephson platform to explore many-body quantum optics in circuit-QED
- A generalized multi-polaron expansion for the spin-boson model: Environmental entanglement and the biased two-state system
- Nonlinear quantum optics in the (ultra)strong light-matter coupling
- Comment on: "How the huge energy of quantum vacuum gravitates to drive the slow accelerating expansion of the Universe"
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