Squeezing and Multimode Entanglement of Surface Acoustic Wave Phonons

Andersson, Gustav; Jolin, Shan W.; Scigliuzzo, Marco; Borgani, Riccardo; Tholén, Mats O.; Hernández, J. C. Rivera; Shumeiko, Vitaly; Haviland, David B.; Delsing, Per

doi:10.1103/prxquantum.3.010312

Cited by 24 publications

(18 citation statements)

References 48 publications

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“…Along this line, it is worth mentioning that APC can also be implemented in any technological platform enabling analog signal processing based on matrix transformations (e.g. optical metamaterials [17,18], electronics [27,51,52] and acoustics [53]).…”

Section: Discussionmentioning

confidence: 99%

Analog Programmable-Photonic Computation

Macho¹,

Pérez²,

Azaña³

et al. 2022

Preprint

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Digital electronics is a technological cornerstone in our modern society which has covered the increasing demand in computing power during the last decades thanks to a periodic doubling of transistor density and power efficiency in integrated circuits. Currently, such scaling laws are reaching their fundamental limits, leading to the emergence of a large gamut of applications that cannot be supported by digital electronics, specifically, those that involve real-time analog multi-data processing, e.g., medical diagnostic imaging, robotic control and remote sensing, among others. In this scenario, an analog computing approach implemented in a reconfigurable non-electronic hardware such as programmable integrated photonics (PIP) can be more efficient than digital electronics to perform these emerging applications. However, actual analog computing models such as quantum and neuromorphic computation were not conceived to extract the benefits of PIP technology (and integrated photonics in general). In this work, we present the foundations of a new computation theory, termed Analog Programmable-Photonic Computation (APC), explicitly designed to unleash the full potential of PIP. Interestingly, APC enables overcoming some of the basic theoretical and technological limitations of existing computational models, can be implemented in other technologies (e.g. in electronics, acoustics or using metamaterials) and, consequently, exhibits the potential to spark a ground-breaking impact on our information society.

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Section: Discussionmentioning

confidence: 99%

Analog Programmable-Photonic Computation

Macho¹,

Pérez²,

Azaña³

et al. 2022

Preprint

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“…The continuous-wave mode of operation has been used to investigate multipartite entanglement of microwave modes in surface-acoustic wave resonators 26 and Josephson parametric amplifiers 27 . Another potential application of this firmware is frequency-multiplexed sensor arrays 28,29 , where a large number of superconducting microwave resonators on one transmission line are pumped at different frequencies while continuously monitoring changes in their response amplitude and phase.…”

Section: B Digital Designmentioning

confidence: 99%

“…With this level of synchronization across all 16 channels, we measure the phase noise of Presto to be -115. 26 noise is equivalent to -124.80 dBc/Hz on a 1 GHz carrier, or -109.24 dBc/Hz on a 6 GHz carrier. The jitter between any two output channels is less than 1 ps, limited by the measuring oscilloscope.…”

Section: Synchronization and Scalingmentioning

confidence: 99%

Measurement and control of a superconducting quantum processor with a fully-integrated radio-frequency system on a chip

Tholén,

Borgani,

Di Carlo

et al. 2022

Preprint

Self Cite

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We describe a digital microwave platform called Presto, designed for measurement and control of multiple quantum bits (qubits) and based on the third-generation radio-frequency system on a chip. Presto uses direct digital synthesis to create signals up to 9 GHz on 16 synchronous output ports, while synchronously analyzing response on 16 input ports. Presto has 16 DC-bias outputs, 4 inputs and 4 outputs for digital triggers or markers, and two continuous-wave outputs for synthesizing frequencies up to 15 GHz. Scaling to a large number of qubits is enabled through deterministic synchronization of multiple Presto units. A Python application programming interface configures a firmware for synthesis and analysis of pulses, coordinated by an event sequencer. The analysis integrates template matching (matched filtering) and low-latency (184 -254 ns) feedback to enable a wide range of multi-qubit experiments. We demonstrate Presto's capabilities with experiments on a sample consisting of two superconducting qubits connected via a flux-tunable coupler. We show single-shot readout and active reset of a single qubit; randomized benchmarking of single-qubit gates showing 99.972% fidelity, limited by the coherence time of the qubit; and calibration of a two-qubit iSWAP gate.

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“…On the other hand, the concept of synthetic dimensions has been recently proposed and extensively explored in a variety of physical systems such as photonic structures [20][21][22][23][24][25][26], cold atoms [27][28][29][30], and superconducting circuits [31][32][33][34][35]. With synthetic dimensions, it is possible to explore richer physical effects with fewer geometric dimensions.…”

mentioning

confidence: 99%

“…With synthetic dimensions, it is possible to explore richer physical effects with fewer geometric dimensions. A simple way to create a synthetic dimension is to actively couple modes at different frequencies via dynamical modulations [20][21][22][23][24][25]34,35]. One can also create synthetic dimensions based on other internal degrees of freedom of photons such as momentum [36,37] and orbital angular momentum [38][39][40].…”

mentioning

confidence: 99%

Giant Atoms in a Synthetic Frequency Dimension

Zhang

et al. 2022

Phys. Rev. Lett.

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Squeezing and Multimode Entanglement of Surface Acoustic Wave Phonons

Cited by 24 publications

References 48 publications

Analog Programmable-Photonic Computation

Analog Programmable-Photonic Computation

Measurement and control of a superconducting quantum processor with a fully-integrated radio-frequency system on a chip

Giant Atoms in a Synthetic Frequency Dimension

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