Highly efficient microwave memory using a superconducting artificial chiral atom

• URL: http://arxiv.org/abs/2503.19608v1
• Date: Tue, 25 Mar 2025 12:49:51 GMT
• Title: Highly efficient microwave memory using a superconducting artificial chiral atom
• Authors: Kai-I Chu, Yung-Fu Chen, Wen-Te Liao,
• Abstract summary: A superconducting artificial chiral atom embedded in a one-dimensional open transmission line is theoretically investigated.<n>By applying a coupling field to a single artificial atom, we modify its dispersion, resulting in a slow probe pulse similar to electromagnetically induced transparency.
• Score: 0.16385815610837165
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: A microwave memory using a superconducting artificial chiral atom embedded in a one-dimensional open transmission line is theoretically investigated. By applying a coupling field to a single artificial atom, we modify its dispersion, resulting in a slow probe pulse similar to electromagnetically induced transparency. The single atom's intrinsic chirality, along with optimal control of the coupling field, enables a storage efficiency exceeding 99% and near-unity fidelity across a broad range of pulse durations. Our scheme provides a feasible pathway toward highly efficient quantum information processing in superconducting circuits.

Related papers

• Cavity-assisted quantum transduction between superconducting qubits and trapped atomic particles mediated by Rydberg levels [49.1574468325115]
  We present an approach for transferring quantum states from superconducting qubits to the internal states of trapped atoms or ions. For experimentally demonstrated parameters of interaction strengths, dissipation, and dephasing, our scheme achieves fidelities above 95%.
  arXiv  Detail & Related papers  (2025-01-06T18:28:18Z)
• Engineering the Environment of a Superconducting Qubit with an Artificial Giant Atom [0.6346987903488328]
  We present an architecture that employs an artificial giant atom from waveguide quantum electrodynamics to tailor the interaction between a superconducting qubit and its environment. This approach surpasses the Purcell limit and significantly extends the qubit's lifetime by ten times while maintaining the readout speed. Our architecture holds promise for bridging circuit and waveguide quantum electrodynamics systems in quantum technology applications.
  arXiv  Detail & Related papers  (2024-10-20T12:21:37Z)
• Slow and Stored Light via Electromagnetically Induced Transparency Using A $Λ$-type Superconducting Artificial Atom [1.1744401311654298]
  Single superconducting qubit-resonator system to realize a desired $da$-type artificial atom. Slow light with a group velocity of 3.6 km/s and microwave storage with a memory time extending to several hundred nanoseconds.
  arXiv  Detail & Related papers  (2024-06-07T15:21:32Z)
• Maxwell-Schr\"{o}dinger Modeling of Superconducting Qubits Coupled to Transmission Line Networks [0.0]
  In superconducting circuit quantum information technologies, classical microwave pulses are applied to control and measure the qubit states. Currently, the design of these microwave pulses use simple theoretical or numerical models that do not account for the self-consistent interactions of how the qubit state modifies the applied microwave pulse. We present the formulation and finite element time domain discretization of a semiclassical Maxwell-Schr"odinger method for describing these self-consistent dynamics.
  arXiv  Detail & Related papers  (2022-10-14T16:11:55Z)
• Enhancing the Coherence of Superconducting Quantum Bits with Electric Fields [62.997667081978825]
  We show that qubit coherence can be improved by tuning defects away from the qubit resonance using an applied DC-electric field. We also discuss how local gate electrodes can be implemented in superconducting quantum processors to enable simultaneous in-situ coherence optimization of individual qubits.
  arXiv  Detail & Related papers  (2022-08-02T16:18:30Z)
• Quantum-limited millimeter wave to optical transduction [50.663540427505616]
  Long distance transmission of quantum information is a central ingredient of distributed quantum information processors. Current approaches to transduction employ solid state links between electrical and optical domains. We demonstrate quantum-limited transduction of millimeter-wave (mmwave) photons into optical photons using cold $85$Rb atoms as the transducer.
  arXiv  Detail & Related papers  (2022-07-20T18:04:26Z)
• 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)
• Near-Field Terahertz Nanoscopy of Coplanar Microwave Resonators [61.035185179008224]
  Superconducting quantum circuits are one of the leading quantum computing platforms. To advance superconducting quantum computing to a point of practical importance, it is critical to identify and address material imperfections that lead to decoherence. Here, we use terahertz Scanning Near-field Optical Microscopy to probe the local dielectric properties and carrier concentrations of wet-etched aluminum resonators on silicon.
  arXiv  Detail & Related papers  (2021-06-24T11:06:34Z)
• Waveguide Bandgap Engineering with an Array of Superconducting Qubits [101.18253437732933]
  We experimentally study a metamaterial made of eight superconducting transmon qubits with local frequency control. We observe the formation of super- and subradiant states, as well as the emergence of a polaritonic bandgap. The circuit of this work extends experiments with one and two qubits towards a full-blown quantum metamaterial.
  arXiv  Detail & Related papers  (2020-06-05T09:27:53Z)
• Engineering the Level Structure of a Giant Artificial Atom in Waveguide Quantum Electrodynamics [5.536933131203853]
  A "giant" atom is formed from a transmon qubit coupled to propagating microwaves at multiple points along an open transmission line. We show that we can modify the relative coupling rates of multiple qubit transitions by more than an order of magnitude. By doing so, we engineer a metastable excited state, allowing us to operate the giant transmon as an effective system.
  arXiv  Detail & Related papers  (2020-03-31T13:11:22Z)

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.