Physical Review Applied最新文献_第2页

Amplifying decoherence-free many-body interactions with giant atoms coupled to a parametric waveguide 放大无退相干的多体相互作用与巨原子耦合到一个参数波导

2区物理与天体物理

Physical Review Applied Pub Date : 2025-12-17 DOI: 10.1103/mck6-2rqd

Xin Wang, Zhao-Min Gao

{"title":"Amplifying decoherence-free many-body interactions with giant atoms coupled to a parametric waveguide","authors":"Xin Wang, Zhao-Min Gao","doi":"10.1103/mck6-2rqd","DOIUrl":"https://doi.org/10.1103/mck6-2rqd","url":null,"abstract":"Parametric amplification offers a powerful means to enhance quantum interactions through field squeezing, yet it typically introduces additional noise which accelerates quantum decoherence, a major obstacle for scalable quantum information processing. The squeezing field is implemented in cavities rather than continuous waveguides, thereby limiting its scalability for applications in quantum simulation. Giant atoms, which couple to waveguides at multiple points, provide a promising route to mitigate dissipation via engineered interference, enabling decoherence-free interactions. We extend the squeezing-amplified interaction to a novel quantum platform combining giant atoms with traveling-wave parametric waveguides based on $χ^{(2)}$ nonlinearity. By exploiting destructive interference between different coupling points, the interaction between giant atoms is not only significantly enhanced but also becomes immune to squeezed noise. Unlike conventional waveguide quantum electrodynamics without a squeezing pump, the giant emitters exhibit both exchange and pairing interactions, making this platform particularly suitable for simulating many-body quantum physics. More intriguingly, the strengths of these interactions can be smoothly tuned by adjusting the squeezing and coupling parameters. Our architecture thus provides a versatile and scalable platform for quantum simulation of strongly correlated physics and paves the way toward robust quantum control in many-body regimes.","PeriodicalId":20109,"journal":{"name":"Physical Review Applied","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://arxiv.org/pdf/2512.16232","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147885287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Intraband entanglement–assisted cavity electro-optic quantum transducer 带内纠缠辅助腔电光量子换能器

2区物理与天体物理

Physical Review Applied Pub Date : 2025-12-10 DOI: 10.1103/6qzn-yl86

Yu-Bo Hou, Rui-Zhe You, Di-Jia Zhang, Pengbo Li, Changchun Zhong

引用次数: 0

Aluminum junctions with well-transmitted channels: A platform for higher-harmonic Josephson elements 具有良好传输通道的铝结：高谐波约瑟夫森元件的平台

2区物理与天体物理

Physical Review Applied Pub Date : 2025-11-26 DOI: 10.1103/78vl-znpj

J. Griesmar, H. Riechert, A. Peugeot, M. Hantute, S. Annabi, Ç.Ö. Girit, G.O. Steffensen, A.L. Yeyati, E. Arrighi, L. Bretheau, J.-D. Pillet

引用次数: 0

Quantitative calibration of a traveling-wave parametric amplifier applied to an optomechanical platform 应用于光机械平台的行波参量放大器的定量标定

2区物理与天体物理

Physical Review Applied Pub Date : 2025-11-12 DOI: 10.1103/1wgj-k7c5

Alexis Delattre, Ilya Golokolenov, Richard Pedurand, Nicolas Roch, Arpit Ranadive, Martina Esposito, Luca Planat, Andrew Fefferman, Eddy Collin, Xin Zhou, Mika A. Sillanpää, Laure Mercier de Lépinay, A. D. Armour, Jonas Glatthard

{"title":"Quantitative calibration of a traveling-wave parametric amplifier applied to an optomechanical platform","authors":"Alexis Delattre, Ilya Golokolenov, Richard Pedurand, Nicolas Roch, Arpit Ranadive, Martina Esposito, Luca Planat, Andrew Fefferman, Eddy Collin, Xin Zhou, Mika A. Sillanpää, Laure Mercier de Lépinay, A. D. Armour, Jonas Glatthard","doi":"10.1103/1wgj-k7c5","DOIUrl":"https://doi.org/10.1103/1wgj-k7c5","url":null,"abstract":"In the past decade, the microwave quantum electronics toolbox has been enriched with quantum limited detection devices such as traveling-wave parametric amplifiers (TWPAs). The extreme sensitivity that they provide is not only mandatory for some physics applications within quantum information processing, but is also the key element that will determine the detection limit of quantum sensing setups. In the framework of microwave optomechanical systems, an unprecedented range of small motions and forces is accessible, for which a specific quantitative calibration becomes necessary. We report on near quantum limited measurements performed with an aluminum drumhead mechanical device within the temperature range 4--400 mK. The whole setup is carefully calibrated, especially taking into account the power dependence of microwave absorption in the superconducting optomechanical cavity. This effect is commonly attributed to two-level systems (TLSs) present in the metal oxide. We demonstrate that a similar feature exists in the TWPA, and can be phenomenologically fitted with adapted expressions. If not taken into account, the error on the signal strength can be as large as a factor of about 2, which is unacceptable for quantitative experiments. The power and temperature dependence is studied over the full parameter range, leading to an absolute definition of the phonon population (i.e., Brownian-motion amplitude), with an uncertainty $ifmmodepmelsetextpmfi{}20mathrm{%}$ limited by sources of noise internal to the optomechanical element.","PeriodicalId":20109,"journal":{"name":"Physical Review Applied","volume":"24 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://arxiv.org/pdf/2505.05837","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147902356","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Broadband kinetic inductance parametric amplifiers with impedance engineering 带阻抗工程的宽带动态电感参数放大器

2区物理与天体物理

Physical Review Applied Pub Date : 2025-11-07 DOI: 10.1103/6xk3-tvpb

Chih-Chiao Hung, Hiroki Kutsuma, C. W. Sandbo Chang, Arjan F. van Loo, Yasunobu Nakamura

{"title":"Broadband kinetic inductance parametric amplifiers with impedance engineering","authors":"Chih-Chiao Hung, Hiroki Kutsuma, C. W. Sandbo Chang, Arjan F. van Loo, Yasunobu Nakamura","doi":"10.1103/6xk3-tvpb","DOIUrl":"https://doi.org/10.1103/6xk3-tvpb","url":null,"abstract":"Broadband quantum-limited parametric amplifiers (PAs) are essential components in quantum information science and technology. Impedance-engineered resonator-based PAs and traveling-wave PAs are the primary approaches taken to overcome the gain-bandwidth constraint. While the former PAs are simpler to fabricate, the target characteristic impedance ${Z}_{mathrm{NR}}$ of the nonlinear resonator has been restricted to be below $10phantom{rule{0.2em}{0ex}}mathrm{ensuremath{Omega}}$, requiring large capacitance. Moreover, these PAs have only been implemented with aluminum-based Josephson junctions (JJs), hindering their operation at high temperatures or strong magnetic fields. To address these issues, we propose a three-stage impedance-transformer scheme, showcased with a 20 nm thick, 250 nm wide, high-kinetic-inductance niobium-titanium-nitride ($mathrm{Nb}mathrm{Ti}mathrm{N}$) film. Our scheme enables ${Z}_{mathrm{NR}}$ up to several tens of ohms---a tenfold improvement over conventional designs, achieved through an additional quarter-wavelength transmission line with a characteristic impedance of 180 $mathrm{ensuremath{Omega}}$. Our kinetic-inductance impedance-engineered parametric amplifiers (KIMPAs), featuring a 330 fF shunt capacitor, demonstrate a phase-preserving amplification with a 450-MHz bandwidth at 17 dB gain, and added noise ranging from 0.5 to 1.3 quanta near the center frequency of 8.4 GHz. Owing to the high critical current of the $mathrm{Nb}mathrm{Ti}mathrm{N}$ nanowire, the KIMPA also achieves an output saturation power of up to $ensuremath{-}51ifmmodepmelsetextpmfi{}3$ dBm, approximately 25 dB higher than that of JJ-based PAs. This scheme also opens new possibilities for other three-wave-mixing building blocks.","PeriodicalId":20109,"journal":{"name":"Physical Review Applied","volume":"24 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147911809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Strain effects on the fluctuation properties in noncollinear antiferromagnets: A first-principles and macrospin-based study. 应变对非共线反铁磁体涨落特性的影响：基于第一性原理和宏自旋的研究。

IF 4.4 2区物理与天体物理

Physical Review Applied Pub Date : 2025-11-03 DOI: 10.1103/fxpw-ygkd

Mohammad M Rahman, Farzad Mahfouzi, Matthew W Daniels, Mark D Stiles

引用次数: 0

Benchmarking the quality of multiplexed qubit readout beyond assignment fidelity 超越分配保真度的多路量子位读出质量的基准测试

2区物理与天体物理

Physical Review Applied Pub Date : 2025-10-15 DOI: 10.1103/dpft-lxtx

Andras Di Giovanni, Adrian Skasberg Aasen, Jürgen Lisenfeld, Martin Gärttner, Hannes Rotzinger, Alexey V. Ustinov

{"title":"Benchmarking the quality of multiplexed qubit readout beyond assignment fidelity","authors":"Andras Di Giovanni, Adrian Skasberg Aasen, Jürgen Lisenfeld, Martin Gärttner, Hannes Rotzinger, Alexey V. Ustinov","doi":"10.1103/dpft-lxtx","DOIUrl":"https://doi.org/10.1103/dpft-lxtx","url":null,"abstract":"The accurate measurement of quantum two-level objects (qubits) is crucial for developing quantum computers. Over the last decade, the measure of choice for benchmarking readout routines for superconducting qubits has been assignment fidelity; however, this method only focuses on the preparation of computational basis states and therefore does not provide a complete characterization of the readout. Here, we expand the focus to the use of detector tomography to fully characterize multiqubit readout of superconducting transmon qubits. The impact of different readout parameters on the rate of information extraction is studied using quantum-state reconstruction infidelity as a proxy. The results are then compared with assignment fidelities, showing good agreement for separable two-qubit states. We therefore propose the rate of infidelity convergence as a validation tool for assignment fidelity and a more comprehensive benchmark for single- and multiqubit readout optimization. To make the best use of experimental resources, we investigate the most efficient distribution of a limited shot budget between detector tomography and state reconstruction within the context of single- and two-qubit experiments. To address the growing interest in three-qubit gates and test the scalability of the validation tool, we perform three-qubit quantum-state tomography that goes beyond conventional readout-error-mitigation methods and find a factor-of-30 reduction in quantum infidelity. Our results demonstrate that qubit readout correlations are not induced by a significantly reduced state distinguishability. Consequently, correlation coefficients can serve as a valuable tool in qubit readout optimization.","PeriodicalId":20109,"journal":{"name":"Physical Review Applied","volume":"24 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147883885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Changes in bubble-cloud dissolution throughout the application of histotripsy pulses. 在整个脉冲应用过程中气泡云溶解的变化。

IF 4.4 2区物理与天体物理

Physical Review Applied Pub Date : 2025-10-01 Epub Date: 2025-10-16 DOI: 10.1103/9vvg-yfmb

Michael Gomez, Katia Flores Basterrechea, Muskan Singh, Himanshu Shekhar, Kenneth B Bader

{"title":"Changes in bubble-cloud dissolution throughout the application of histotripsy pulses.","authors":"Michael Gomez, Katia Flores Basterrechea, Muskan Singh, Himanshu Shekhar, Kenneth B Bader","doi":"10.1103/9vvg-yfmb","DOIUrl":"10.1103/9vvg-yfmb","url":null,"abstract":"Material damage is a consideration for any applications where pressure fields may initiate cavitation. Histotripsy is a focused ultrasound therapy that exploits the destructive property of bubble clouds to disrupt viscoelastic tissue. The resulting effect achieves the same outcomes as surgery without the need for an invasive procedure. This study investigated the relationship between changes in bubble clouds throughout focused ultrasound exposure. Specifically, the dissolution period of bubbles generated in water and agarose gel was tracked with ultrafast ultrasound imaging. This imaging marker was found to increase in agarose during the initial stages of exposure, and maintained steady-state values after 555 ± 64 applied histotripsy pulses. The relative change in damage area of the gel and bubble-dissolution period with exposure duration were found to be equivalent (p > 0.05). Acoustic emissions tracked with passive acoustic imaging were also evaluated and were found to have a different functional form with exposure duration than the bubble-dissolution period or area of damage to the gel. In contrast, there were no noted changes in these imaging markers throughout histotripsy exposure when bubble clouds were generated in water. A previously validated bubble-dynamics model was extended to calculate the anticipated changes to bubble expansion during histotripsy exposure under the assumption that the agarose elastic modulus approached 0 kPa (i.e., total fractionation). The calculations predicted larger changes in the bubble dynamics than was observed, which might reflect complicated dynamics of the bubble cloud during the final stages of treatment.","PeriodicalId":20109,"journal":{"name":"Physical Review Applied","volume":"24 4","pages":""},"PeriodicalIF":4.4,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13309225/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148346040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Lumped-element broadband SNAIL parametric amplifier with on-chip pump filter for multiplexed readout 集总元件宽带蜗牛参数放大器与片上泵滤波器的多路读出

2区物理与天体物理

Physical Review Applied Pub Date : 2025-10-01 DOI: 10.1103/5l86-pw21

Vidul Joshi, Sumeru Hazra, Andy Z. Ding, Alessandro Miano, Wei Dai, G. Umasankar, Akshay Koottandavida, G. Liu, Luigi Frunzio, Michel Devoret

引用次数: 1

Josephson traveling-wave parametric amplifier based on a low-intrinsic-loss lumped-element coplanar waveguide 基于低本征损耗集总元件共面波导的约瑟夫逊行波参量放大器

2区物理与天体物理

Physical Review Applied Pub Date : 2025-09-23 DOI: 10.1103/qhl6-cz2z

C. W. Sandbo Chang, Arjan F. van Loo, Chih-Chiao Hung, Yu Zhou, Christian Gnandt, Shuhei Tamate, Yasunobu Nakamura

引用次数: 4