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In this article, we propose a new method of generating single microwave photons in superconducting circuits. We theoretically show that pure single microwave photons can be generated on demand and tuned over a large frequency band by making…

Quantum Physics · Physics 2025-05-20 Samarth Hawaldar , Siddhi Satish Khaire , Per Delsing , Baladitya Suri

Motivated by recent interest in implementing circuit quantum electrodynamics with semiconducting quantum dots, we consider a double quantum dot (DQD) capacitively coupled to a superconducting resonator that is driven by the microwave field…

Mesoscale and Nanoscale Physics · Physics 2017-09-20 Clement H. Wong , Maxim G. Vavilov

Two-way microwave-optical quantum transduction is essential to connecting distant superconducting qubits via optical fiber, and to enable quantum networking at a large scale. In Bl\'esin, Tian, Bhave, and Kippenberg's article, ``Quantum…

A switch capable of routing microwave signals at cryogenic temperatures is a desirable component for state-of-the-art experiments in many fields of applied physics, including but not limited to quantum information processing, communication…

Quantum Physics · Physics 2017-01-10 M. Pechal , J. -C. Besse , M. Mondal , M. Oppliger , S. Gasparinetti , A. Wallraff

We demonstrate a microwave power-to-electrical energy conversion in a resonator-coupled double quantum dot. The system, operated as a photodiode, converts individual microwave photons to electrons tunneling through the double dot, resulting…

Developing schemes for efficient and broad-band frequency conversion of quantum signals is an ongoing challenge in the field of modern quantum information. Especially the coherent conversion between microwave and optical signals is an…

Mesoscale and Nanoscale Physics · Physics 2022-11-03 F. Engelhardt , V. A. S. V. Bittencourt , H. Huebl , O. Klein , S. Viola Kusminskiy

A microwave-optical transducer of sufficiently low noise and high signal transfer rate would allow entanglement to be distributed between superconducting quantum processors reliably within the lifetimes of their quantum memories. To clarify…

We present a novel method to realize a multi-target-qubit controlled phase gate with one microwave photonic qubit simultaneously controlling $n-1$ target microwave photonic qubits. This gate is implemented with $n$ microwave cavities…

Quantum Physics · Physics 2019-10-30 Biaoliang Ye , Zhen-Fei Zheng , Yu Zhang , Chui-Ping Yang

The conversion between microwave photons and optical photons with quantum coherence is important for quantum communication and computation. In this paper, we report a proposal using an ensemble of atoms coupled to microwave and optical…

Quantum Physics · Physics 2019-09-04 Mingxia Huo

Silicon photonic integrated circuits offer significant improvements in processing bandwidth, power efficiency, and low latency, addressing the needs of future microwave communication systems. Several successful applications have been…

Josephson parametric converters (JPCs) are superconducting devices capable of performing nondegenerate, three-wave mixing in the microwave domain without losses. One drawback limiting their use in scalable quantum architectures is the large…

Superconductivity · Physics 2017-02-22 Baleegh Abdo , Jose M. Chavez-Garcia , Markus Brink , George Keefe , Jerry M. Chow

Photons at telecom wavelength are the ideal choice for high density interconnects while solid state qubits in the microwave domain offer strong interactions for fast quantum logic. Here we present a general purpose, quantum-enabled…

Quantum Physics · Physics 2022-03-30 Rishabh Sahu , William Hease , Alfredo Rueda , Georg Arnold , Liu Qiu , Johannes Fink

The interaction of photons and coherent quantum systems can be employed to detect electromagnetic radiation with remarkable sensitivity. We introduce a quantum radiometer based on the photon-induced-dephasing process of a superconducting…

Quantum Physics · Physics 2021-05-12 Zhixin Wang , Mingrui Xu , Xu Han , Wei Fu , Shruti Puri , S. M. Girvin , Hong X. Tang , S. Shankar , M. H. Devoret

Superconducting quantum processors are a leading platform for implementing practical quantum computation algorithms. Although superconducting quantum processors with hundreds of qubits have been demonstrated, their further scaling up is…

Quantum Physics · Physics 2025-08-05 Yiyu Zhou , Yufeng Wu , Chunzhen Li , Mohan Shen , Likai Yang , Jiacheng Xie , Hong X. Tang

Microwave drives play a central role in the control of superconducting quantum circuits, enabling qubit gates, readout, and parametric interactions. As the drive frequencies are typically an order of magnitude smaller than (twice) the…

We propose and experimentally demonstrate sequential quantum computing (SQC), a paradigm that utilizes multiple homogeneous or heterogeneous quantum processors in hybrid classical-quantum workflows. In this manner, we are able to overcome…

The rapid progress in quantum information processing leads to a rising demand for devices to control the propagation of electromagnetic wave pulses and to ultimately realize a universal and efficient quantum memory. While in recent years…

Microwave photonics is a remarkably powerful system for quantum simulation and technologies, but its integration in superconducting circuits, superior in many aspects, is constrained by the long wavelengths and impedance mismatches in this…

Semiconductor qubits rely on the control of charge and spin degrees of freedom of electrons or holes confined in quantum dots (QDs). They constitute a promising approach to quantum information processing [1, 2], complementary to…

In order to overcome the challenge of lacking polarization encoding in integrated quantum photonic circuits, we propose a scheme to realize arbitrary polarization manipulation of a single photon by integrating a single quantum emitter in a…

Quantum Physics · Physics 2024-09-27 Yunning Lu , Zeyang Liao , Xue-hua Wang