Mode Structure of a Broadband High Gain Parametric Amplifier
- URL: http://arxiv.org/abs/2103.04099v1
- Date: Sat, 6 Mar 2021 11:17:53 GMT
- Title: Mode Structure of a Broadband High Gain Parametric Amplifier
- Authors: Xin Chen, Jacob Zhang, Z. Y. Ou
- Abstract summary: We show that the mode structure and the temporal mode functions do not change as the gain increases.
Numerical solutions for high gain situation indicate a gain-dependent mode structure that has its mode distributions changed and mode functions broadened as the gain increases.
- Score: 2.8944480776764308
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: High gain parametric amplifier with a single-pass pulsed pump is known to
generate broadband twin photon fields that are entangled in amplitude and phase
but have complicated spectral correlation. Fortunately, they can be decomposed
into independent temporal modes. But the common treatment of parametric
interaction Hamiltonian does not consider the issue of time ordering problem of
interaction Hamiltonian and thus leads to incorrect conclusion that the mode
structure and the temporal mode functions do not change as the gain increases.
In this paper, we use an approach that is usually employed for treating
nonlinear interferometers and avoids the time ordering issue. This allows us to
derive an evolution equation in differential-integral form. Numerical solutions
for high gain situation indicate a gain-dependent mode structure that has its
mode distributions changed and mode functions broadened as the gain increases.
Related papers
- Josephson bifurcation readout: beyond the monochromatic approximation [49.1574468325115]
We analyze properties of bifurcation quantum detectors based on weakly nonlinear superconducting resonance circuits.
This circuit can serve as an efficient detector of the quantum state of superconducting qubits.
arXiv Detail & Related papers (2024-05-25T22:22:37Z) - Pulse optimization for high-precision motional-mode characterization in trapped-ion quantum computers [4.7487511537612335]
High-fidelity operation of quantum computers requires precise knowledge of the physical system through characterization.
For motion-mediated entanglement generation in trapped ions, it is crucial to have precise knowledge of the motional-mode parameters such as the mode frequencies and the Lamb-Dicke parameters.
arXiv Detail & Related papers (2023-07-29T00:02:30Z) - Directional Josephson traveling-wave parametric amplifier via
non-Hermitian topology [58.720142291102135]
Low-noise microwave amplification is crucial for detecting weak signals in quantum technologies and radio astronomy.
Current amplifiers do not satisfy all these requirements, severely limiting the scalability of superconducting quantum devices.
Here, we demonstrate the feasibility of building a near-ideal quantum amplifier using a homogeneous Josephson junction array and the non-trivial topology of its dynamics.
arXiv Detail & Related papers (2022-07-27T18:07:20Z) - Chiral current in Floquet cavity-magnonics [0.0]
Floquet engineering can induce complex collective behaviour and interesting synthetic gauge-field in quantum systems.
We realize a chiral state-transfer in a cavity-magnonic system using a Floquet drive on frequencies of the magnon modes.
arXiv Detail & Related papers (2022-06-20T02:33:14Z) - Extensible circuit-QED architecture via amplitude- and
frequency-variable microwaves [52.77024349608834]
We introduce a circuit-QED architecture combining fixed-frequency qubits and microwave-driven couplers.
Drive parameters appear as tunable knobs enabling selective two-qubit coupling and coherent-error suppression.
arXiv Detail & Related papers (2022-04-17T22:49:56Z) - Connecting classical and quantum mode theories for coupled lossy cavity
resonators using quasinormal modes [2.4469484645516837]
We present a quantized quasinormal approach to rigorously describe coupled lossy resonators.
We quantify the quantum coupling parameters as a function of distance between the resonators.
We make a direct connection between classical and quantum quasinormal modes parameters and theories.
arXiv Detail & Related papers (2021-08-23T14:21:02Z) - Superconducting coupler with exponentially large on-off ratio [68.8204255655161]
Tunable two-qubit couplers offer an avenue to mitigate errors in multiqubit superconducting quantum processors.
Most couplers operate in a narrow frequency band and target specific couplings, such as the spurious $ZZ$ interaction.
We introduce a superconducting coupler that alleviates these limitations by suppressing all two-qubit interactions with an exponentially large on-off ratio.
arXiv Detail & Related papers (2021-07-21T03:03:13Z) - Designing Kerr Interactions for Quantum Information Processing via
Counterrotating Terms of Asymmetric Josephson-Junction Loops [68.8204255655161]
static cavity nonlinearities typically limit the performance of bosonic quantum error-correcting codes.
Treating the nonlinearity as a perturbation, we derive effective Hamiltonians using the Schrieffer-Wolff transformation.
Results show that a cubic interaction allows to increase the effective rates of both linear and nonlinear operations.
arXiv Detail & Related papers (2021-07-14T15:11:05Z) - Supermode-based second harmonic generation in a nonlinear interferometer [0.0]
We demonstrate supermode-based second harmonic generation in an integrated nonlinear interferometer made of linear and nonlinear directional couplers.
We use a fully-fibered pump shaper to demonstrate second harmonic generation pumped by the symmetric or anti-symmetric fundamental spatial modes.
arXiv Detail & Related papers (2021-06-24T17:33:34Z) - Spatiotemporal entanglement in a noncollinear optical parametric
amplifier [0.0]
We investigate the generation of two entangled beams of light in the process of single-pass type parametric conversion down with an ultra-short pulsed pump.
We find the degenerate-temporal eigenmodes and the corresponding squeezing eigenvalues of the generated field both numerically and analytically.
arXiv Detail & Related papers (2020-09-22T13:04:21Z) - Frequency-resolved photon correlations in cavity optomechanics [58.720142291102135]
We analyze the frequency-resolved correlations of the photons being emitted from an optomechanical system.
We discuss how the time-delayed correlations can reveal information about the dynamics of the system.
This enriched understanding of the system can trigger new experiments to probe nonlinear phenomena in optomechanics.
arXiv Detail & Related papers (2020-09-14T06:17:36Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.