Dissipation in passive non-reciprocal microwave devices
- URL: http://arxiv.org/abs/2509.00874v1
- Date: Sun, 31 Aug 2025 14:40:13 GMT
- Title: Dissipation in passive non-reciprocal microwave devices
- Authors: Stefano Bosco,
- Abstract summary: Non-reciprocal devices are key components in both classical and quantum electronics.<n>We develop an analytic framework that captures the response of such devices in the presence of dissipation.<n>Our results yield an effective circuit model that accurately describes the device response in experimentally relevant regimes.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Non-reciprocal devices are key components in both classical and quantum electronics. One approach to realizing passive non-reciprocal microwave devices is through capacitive coupling between external electrodes and materials exhibiting non-reciprocal conductance. In this work, we develop an analytic framework that captures the response of such devices in the presence of dissipation while accounting for the full AC dynamics of the material. Our results yield an effective circuit model that accurately describes the device response in experimentally relevant regimes even at small dissipation levels. Furthermore, our analysis reveals counterpropagating features arising from the intrinsic AC response of the material that could be exploited to dynamically switch the non-reciprocity of the device, opening pathways for tunable non-reciprocal microwave technologies.
Related papers
- Circulators based on Coupled Quantum Anomalous Hall Insulators and Resonators [19.42533070986258]
Integrated plasmonics is advancing rapidly, enabling a wide range of functionalities to be incorporated onto a single chip.<n>Non-reciprocal devices are essential for preventing unwanted feedback that can degrade system performance.<n>Here, we demonstrate that topological circulators utilizing asymmetric coupling offer improved input power range, isolation, and insertion loss.
arXiv Detail & Related papers (2025-05-12T17:21:43Z) - Electron-Electron Interactions in Device Simulation via Non-equilibrium Green's Functions and the GW Approximation [71.63026504030766]
electron-electron (e-e) interactions must be explicitly incorporated in quantum transport simulation.<n>This study is the first one reporting large-scale atomistic quantum transport simulations of nano-devices under non-equilibrium conditions.
arXiv Detail & Related papers (2024-12-17T15:05:33Z) - Extracting the current-phase-relation of a monolithic three-dimensional
nano-constriction using a DC-current-tunable superconducting microwave cavity [0.0]
We present a niobium microwave cavity with a monolithically integrated, neon-ion-beam patterned 3D nano-constriction.
By design, we obtain a DC-current-tunable microwave circuit and characterize how the bias-current-dependent constriction properties impact the cavity resonance.
Our platform provides a useful method to comprehensively characterize nonlinear elements integrated in microwave circuits.
arXiv Detail & Related papers (2024-02-15T19:02:49Z) - Quantum gas-enabled direct mapping of active current density in
percolating networks of nanowires [0.0]
We introduce Bose-Einstein microscopy to address the long-standing problem of imaging active current flow in 2D materials.
We show how this, combined with existing thermal imaging methods, eliminates the need for assumptions between electrical and thermal properties.
arXiv Detail & Related papers (2023-03-21T17:23:17Z) - Machine Learning Extreme Acoustic Non-reciprocity in a Linear Waveguide
with Multiple Nonlinear Asymmetric Gates [68.8204255655161]
This work is a study of acoustic non-reciprocity exhibited by a passive one-dimensional linear waveguide incorporating two local strongly nonlinear, asymmetric gates.
The maximum transmissibility reaches as much as 40%, and the transmitted energy from upstream to downstream varies up to nine orders of magnitude, depending on the direction of wave propagation.
arXiv Detail & Related papers (2023-02-02T17:28:04Z) - Nonreciprocal devices based on voltage-tunable junctions [48.7576911714538]
We propose to couple the flux degree of freedom of one mode with the charge degree of freedom of a second mode in a hybrid superconducting-semiconducting architecture.
Nonreciprocity can arise in this architecture in the presence of external static magnetic fields alone.
arXiv Detail & Related papers (2022-09-13T17:49:19Z) - Driving Force and Nonequilibrium Vibronic Dynamics in Charge Separation
of Strongly Bound Electron-Hole Pairs [59.94347858883343]
We study the dynamics of charge separation in one, two and three-dimensional donor-acceptor networks.
This allows us to identify the precise conditions in which underdamped vibrational motion induces efficient long-range charge separation.
arXiv Detail & Related papers (2022-05-11T17:51:21Z) - Slowing down light in a qubit metamaterial [98.00295925462214]
superconducting circuits in the microwave domain still lack such devices.
We demonstrate slowing down electromagnetic waves in a superconducting metamaterial composed of eight qubits coupled to a common waveguide.
Our findings demonstrate high flexibility of superconducting circuits to realize custom band structures.
arXiv Detail & Related papers (2022-02-14T20:55:10Z) - A low-loss ferrite circulator as a tunable chiral quantum system [108.66477491099887]
We demonstrate a low-loss waveguide circulator constructed with single-crystalline yttrium iron garnet (YIG) in a 3D cavity.
We show the coherent coupling of its chiral internal modes with integrated superconducting niobium cavities.
We also probe experimentally the effective non-Hermitian dynamics of this system and its effective non-reciprocal eigenmodes.
arXiv Detail & Related papers (2021-06-21T17:34:02Z)
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.