Yu-han Chang, D. Dubyna, Wei-Chen Chien, Chien-Han Chen, C. Wu, W. Kuo
We experimentally studied the microwave response of a transmon artificial atom coupled to two closely spaced resonant modes. When the atom is under driven with one of the modes, the atom state and mode photons are superposed, forming the dressed states. Dressed states with 1st, 2nd and 3rd excited states of the atom were prepared and probed via the strong coupling to the other resonant mode from the point of view of cavity quantum electrodynamics. The transmission of the probe tone is modulated by the driving microwave amplitude, displaying multi-photon process associated with the inter-atomic level transitions. Our system provides an easy method to study the dressed states by driving one mode and probing the Landau-Zener transition of the other.
{"title":"Cavity Quantum Electrodynamics with Dressed States of a Superconducting Artificial Atom","authors":"Yu-han Chang, D. Dubyna, Wei-Chen Chien, Chien-Han Chen, C. Wu, W. Kuo","doi":"10.1364/QIM.2019.F4C.3","DOIUrl":"https://doi.org/10.1364/QIM.2019.F4C.3","url":null,"abstract":"We experimentally studied the microwave response of a transmon artificial atom coupled to two closely spaced resonant modes. When the atom is under driven with one of the modes, the atom state and mode photons are superposed, forming the dressed states. Dressed states with 1st, 2nd and 3rd excited states of the atom were prepared and probed via the strong coupling to the other resonant mode from the point of view of cavity quantum electrodynamics. The transmission of the probe tone is modulated by the driving microwave amplitude, displaying multi-photon process associated with the inter-atomic level transitions. Our system provides an easy method to study the dressed states by driving one mode and probing the Landau-Zener transition of the other.","PeriodicalId":370877,"journal":{"name":"Quantum Information and Measurement (QIM) V: Quantum Technologies","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131343613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
We compensate for scattering of pairs of spatially entangled photons from a dynamic diffuser, by tailoring the wavefront of the pump beam which generates the photon-pairs in a spontaneous parametric down conversion process.
{"title":"Wavefront Shaping of Spatially Entangled Photons Scattered by Dynamic Random Media","authors":"Ohad Lib, Giora Hasson, Y. Bromberg","doi":"10.1364/QIM.2019.F5A.9","DOIUrl":"https://doi.org/10.1364/QIM.2019.F5A.9","url":null,"abstract":"We compensate for scattering of pairs of spatially entangled photons from a dynamic diffuser, by tailoring the wavefront of the pump beam which generates the photon-pairs in a spontaneous parametric down conversion process.","PeriodicalId":370877,"journal":{"name":"Quantum Information and Measurement (QIM) V: Quantum Technologies","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115598514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Tiranov, Moritz Businger, S. Welinski, A. Ferrier, P. Goldner, N. Gisin, M. Afzelius
Here we demonstrate a spin-wave storage realized in 171Yb3+:Y2SiO5 crystal, with storage times beyond 1 ms thanks to the simultaneous clock condition for optical and microwave transitions. These results represent a step towards realizing a long-lived, broadband and multimode solid-state quantum memory.
{"title":"Towards broadband optical spin-wave quantum memory","authors":"A. Tiranov, Moritz Businger, S. Welinski, A. Ferrier, P. Goldner, N. Gisin, M. Afzelius","doi":"10.1364/QIM.2019.S1D.5","DOIUrl":"https://doi.org/10.1364/QIM.2019.S1D.5","url":null,"abstract":"Here we demonstrate a spin-wave storage realized in 171Yb3+:Y2SiO5 crystal, with storage times beyond 1 ms thanks to the simultaneous clock condition for optical and microwave transitions. These results represent a step towards realizing a long-lived, broadband and multimode solid-state quantum memory.","PeriodicalId":370877,"journal":{"name":"Quantum Information and Measurement (QIM) V: Quantum Technologies","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115731154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
V. Ansari, J. M. Donohue, J. Řeháček, Z. Hradil, B. Stoklasa, M. Paúr, L. Sánchez‐Soto, C. Silberhorn
We employ time-frequency projective measurements to estimate arbitrarily small separations between objects with quantum-limited precision. We experimentally resolve temporal and spectral separations between incoherent mixtures of single-photon level signals ten times smaller than their bandwidths.
{"title":"Quantum-limited time-frequency estimation through mode-resolved measurements","authors":"V. Ansari, J. M. Donohue, J. Řeháček, Z. Hradil, B. Stoklasa, M. Paúr, L. Sánchez‐Soto, C. Silberhorn","doi":"10.1364/QIM.2019.S3D.4","DOIUrl":"https://doi.org/10.1364/QIM.2019.S3D.4","url":null,"abstract":"We employ time-frequency projective measurements to estimate arbitrarily small separations between objects with quantum-limited precision. We experimentally resolve temporal and spectral separations between incoherent mixtures of single-photon level signals ten times smaller than their bandwidths.","PeriodicalId":370877,"journal":{"name":"Quantum Information and Measurement (QIM) V: Quantum Technologies","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125317615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Meng-Zi Huang, T. Mazzoni, C. G. Alzar, J. Reichel
We report preliminary results of a quantum-enhanced atom chip clock. Using ultracold rubidium atoms inside an on-chip optical cavity, we investigate light-induced spin squeezing and non-destructive measurements at 10E-13 level of relative frequency stability.
{"title":"Towards a quantum-enhanced trapped-atom clock on a chip","authors":"Meng-Zi Huang, T. Mazzoni, C. G. Alzar, J. Reichel","doi":"10.1364/QIM.2019.T5A.32","DOIUrl":"https://doi.org/10.1364/QIM.2019.T5A.32","url":null,"abstract":"We report preliminary results of a quantum-enhanced atom chip clock. Using ultracold rubidium atoms inside an on-chip optical cavity, we investigate light-induced spin squeezing and non-destructive measurements at 10E-13 level of relative frequency stability.","PeriodicalId":370877,"journal":{"name":"Quantum Information and Measurement (QIM) V: Quantum Technologies","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126828394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
B. Bell, Gil Triginer Garces, C. Wade, I. Walmsley, B. Eggleton
Multi-photon interference is observed between frequency channels in the higher-order emission from individual photon pair sources, using pulse shaping of the pump laser. I will also discuss applications to phase-sensitive spectral characterisation of pair sources.
{"title":"Interference in multi-photon emission from photon pair sources with shaped spectral amplitudes","authors":"B. Bell, Gil Triginer Garces, C. Wade, I. Walmsley, B. Eggleton","doi":"10.1364/QIM.2019.S2C.4","DOIUrl":"https://doi.org/10.1364/QIM.2019.S2C.4","url":null,"abstract":"Multi-photon interference is observed between frequency channels in the higher-order emission from individual photon pair sources, using pulse shaping of the pump laser. I will also discuss applications to phase-sensitive spectral characterisation of pair sources.","PeriodicalId":370877,"journal":{"name":"Quantum Information and Measurement (QIM) V: Quantum Technologies","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114548612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
We develop single-photon sources that simultaneously combines high purity, efficiency, and indistinguishability. We demonstrate entanglement among 12 single photons. We construct high-performance multi-photon boson sampling machines to race against classical computers.
{"title":"Toward “quantum supremacy” with photons","authors":"Chaoyang Lu, Jian-Wei Pan","doi":"10.1364/QIM.2019.F3A.1","DOIUrl":"https://doi.org/10.1364/QIM.2019.F3A.1","url":null,"abstract":"We develop single-photon sources that simultaneously combines high purity, efficiency, and indistinguishability. We demonstrate entanglement among 12 single photons. We construct high-performance multi-photon boson sampling machines to race against classical computers.","PeriodicalId":370877,"journal":{"name":"Quantum Information and Measurement (QIM) V: Quantum Technologies","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116871831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
V. Cimini, L. Ruggiero, I. Gianani, M. Sbroscia, T. Gasperi, E. Roccia, Luca Mancino, D. Tofani, F. Bruni, M. Ricci, M. Barbieri
Quantum sensors must be robust against noise even when non-stationary. Here we study a dynamic process using a Multiparameter approach that gives us control of our setup instabilities.
{"title":"Towards real-time optical quantum sensors","authors":"V. Cimini, L. Ruggiero, I. Gianani, M. Sbroscia, T. Gasperi, E. Roccia, Luca Mancino, D. Tofani, F. Bruni, M. Ricci, M. Barbieri","doi":"10.1364/QIM.2019.T5A.33","DOIUrl":"https://doi.org/10.1364/QIM.2019.T5A.33","url":null,"abstract":"Quantum sensors must be robust against noise even when non-stationary. Here we study a dynamic process using a Multiparameter approach that gives us control of our setup instabilities.","PeriodicalId":370877,"journal":{"name":"Quantum Information and Measurement (QIM) V: Quantum Technologies","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128591798","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Taira Giordani, Fulvio Flamini, M. Pompili, N. Viggianiello, N. Spagnolo, F. Sciarrino, A. Crespi, R. Osellame, N. Wiebe, M. Walschaers, A. Buchleitner
Multi-photon interference is believed to have a fundamental role for obtaining a quantum advantage. In this work we discuss a reliable and efficient technique to find a signature of its presence in boson sampling experiments.
{"title":"Validation of multi-photon interference in photonic boson sampling","authors":"Taira Giordani, Fulvio Flamini, M. Pompili, N. Viggianiello, N. Spagnolo, F. Sciarrino, A. Crespi, R. Osellame, N. Wiebe, M. Walschaers, A. Buchleitner","doi":"10.1364/QIM.2019.S2C.6","DOIUrl":"https://doi.org/10.1364/QIM.2019.S2C.6","url":null,"abstract":"Multi-photon interference is believed to have a fundamental role for obtaining a quantum advantage. In this work we discuss a reliable and efficient technique to find a signature of its presence in boson sampling experiments.","PeriodicalId":370877,"journal":{"name":"Quantum Information and Measurement (QIM) V: Quantum Technologies","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130105219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Korobko, Y. Ma, L. Kleybolte, S. Steinlechner, S. Ast, H. Miao, Yanbei Chen, R. Schnabel
Optical cavities allow to increase the sensitivity in quantum metrology, at a price of reduced detection bandwidth. We propose to overcome these limitations by squeezing the quantum uncertainty directly inside the detector cavity.
{"title":"Cavity-enhanced quantum metrology with internal squeezed light generation","authors":"M. Korobko, Y. Ma, L. Kleybolte, S. Steinlechner, S. Ast, H. Miao, Yanbei Chen, R. Schnabel","doi":"10.1364/QIM.2019.T5A.43","DOIUrl":"https://doi.org/10.1364/QIM.2019.T5A.43","url":null,"abstract":"Optical cavities allow to increase the sensitivity in quantum metrology, at a price of reduced detection bandwidth. We propose to overcome these limitations by squeezing the quantum uncertainty directly inside the detector cavity.","PeriodicalId":370877,"journal":{"name":"Quantum Information and Measurement (QIM) V: Quantum Technologies","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130488171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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