Towards quantum control over macroscopic distances : compact loading of rubidium atoms for a 2-dimensional magneto optical trap by Pong, Sze You

“…While such a great success has advanced quantum computing, quantum simulation, quantum metrology, etc., most of the quantum control schemes take place on the scale of millimetres to centimetres. …”
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Pulsed squeezed light: characterization and applications by Triginer Garcés, G

“…<p>Squeezed light is expected to enable new quantum metrology and quantum computation applications, but the very high degree of experimental control required in practice places severe demands on the physical devices used to generate it. …”

Bayesian-Based Hybrid Method for Rapid Optimization of NV Center Sensors by Jiazhao Tian, Ressa S. Said, Fedor Jelezko, Jianming Cai, Liantuan Xiao

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Detecting telecom single photons with 99.5−2.07+0.5% system detection efficiency and high time resolution by J. Chang, J. W. N. Los, J. O. Tenorio-Pearl, N. Noordzij, R. Gourgues, A. Guardiani, J. R. Zichi, S. F. Pereira, H. P. Urbach, V. Zwiller, S. N. Dorenbos, I. Esmaeil Zadeh

“…As a result, the fast developing fields of quantum information science, quantum metrology, infrared imaging, and quantum networks will greatly benefit from this far-reaching quantum detection technology.…”
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Generation of non-classical states of light and their application in deterministic quantum teleportation by Zhi-Hui Yan, Ji-Liang Qin, Zhong-Zhong Qin, Xiao-Long Su, Xiao-Jun Jia, Chang-De Xie, Kun-Chi Peng

“…To date, non-classical states of light with much higher quality than before are required to develop high-fidelity quantum information processing and high-precision quantum metrology. Squeezed and entangled states with approximately 10 dB noise below the corresponding shot noise limit have been generated using a series of methods, which means that the noise variance reaches a few percent of the vacuum noise. …”
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Precise qubit control beyond the rotating wave approximation by Jochen Scheuer, Xi Kong, Ressa S Said, Jeson Chen, Andrea Kurz, Luca Marseglia, Jiangfeng Du, Philip R Hemmer, Simone Montangero, Tommaso Calarco, Boris Naydenov, Fedor Jelezko

“…Fast and accurate quantum operations of a single spin in room-temperature solids are required in many modern scientific areas, for instance in quantum information, quantum metrology, and magnetometry. However, the accuracy is limited if the Rabi frequency of the control is comparable with the transition frequency of the qubit due to the breakdown of the rotating wave approximation (RWA). …”
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Experimental generalized quantum suppression law in Sylvester interferometers by Niko Viggianiello, Fulvio Flamini, Luca Innocenti, Daniele Cozzolino, Marco Bentivegna, Nicolò Spagnolo, Andrea Crespi, Daniel J Brod, Ernesto F Galvão, Roberto Osellame, Fabio Sciarrino

“…The observed suppression occurs for a much larger fraction of input–output combinations than what is observed in Fourier interferometers of the same size, and could be relevant to certification of boson sampling machines and other experiments relying on bosonic interference, such as quantum simulation and quantum metrology.…”
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Error-corrected quantum sensing by Zhou, Sisi, Layden, David, Zhang, Mengzhen, Preskill, John, Cappellaro, Paola, Jiang, Liang

“…Quantum metrology has many important applications in science and technology, ranging from frequency spectroscopy to gravitational wave detection. …”
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Generalized hyper-Ramsey-Bordé matter-wave interferometry: quantum engineering of robust atomic sensors with composite pulses by Zanon-Willette, T., Wilkowski, David, Lefevre, R., Taichenachev, A. V., Yudin, V. I.

“…In such context, we propose a new quantum engineering approach to Ramsey-Bord\'e interferometry introducing multiple composite laser pulses with tailored pulse duration, Rabi field amplitude, frequency detuning and laser phase-step. We explore quantum metrology with hyper-Ramsey and hyper-Hahn-Ramsey clocks below the $10^-18$ level of fractional accuracy by a fine tuning control of light excitation parameters leading to spinor interferences protected against light-shift coupled to laser-probe field variation. …”
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The quantum technologies roadmap: a European community view by Antonio Acín, Immanuel Bloch, Harry Buhrman, Tommaso Calarco, Christopher Eichler, Jens Eisert, Daniel Esteve, Nicolas Gisin, Steffen J Glaser, Fedor Jelezko, Stefan Kuhr, Maciej Lewenstein, Max F Riedel, Piet O Schmidt, Rob Thew, Andreas Wallraff, Ian Walmsley, Frank K Wilhelm

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Multiparameter squeezing for optimal quantum enhancements in sensor networks by Manuel Gessner, Augusto Smerzi, Luca Pezzè

“…Quantum metrology often deals with the simultaneous estimation of multiple parameters, but the optimal use of squeezing is not yet fully understood in this case. …”
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A microwave scattering spectral method to detect the nanomechanical vibrations embedded in a superconducting qubit by H. Y. Gao, L. F. Wei

“…The proposal is feasible with the current technique and should be useful to design the desired NMRs for various quantum metrological applications.…”
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Linear Ascending Metrological Algorithm by M. R. Perelshtein, N. S. Kirsanov, V. V. Zemlyanov, A. V. Lebedev, G. Blatter, V. M. Vinokur, G. B. Lesovik

“…Our findings demonstrate a quantum-metrological procedure capable of mitigating detrimental dephasing and relaxation effects.…”
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Ramsey interferometry with generalized one-axis twisting echoes by Marius Schulte, Victor J. Martínez-Lahuerta, Maja S. Scharnagl, Klemens Hammerer

“…This provides a generalized characterization of squeezing echo protocols, recovering a number of known quantum metrological protocols as local sensitivity maxima, thereby proving their optimality. …”
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Quantum sensing of photonic spin density using a single spin qubit by Farid Kalhor, Li-Ping Yang, Leif Bauer, Zubin Jacob

“…The direct detection of the photonic spin density at the nanoscale using NV centers in diamond opens interesting quantum metrological avenues for studying exotic phases of photons, nanoscale properties of structured light as well as future on-chip applications in spin quantum electrodynamics.…”
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Optimal circular dichroism sensing with quantum light : multi-parameter estimation approach by Ioannou, Christina, Nair, Ranjith, Fernandez-Corbaton, Ivan, Gu, Mile, Rockstuhl, Carsten, Lee, Changhyoup

“…This work paves the way for further investigations of quantum metrological techniques in chirality sensing.…”
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Super-resolution microscopy with spatial modes of light by da Costa Filho, JI

“…</p> <p>In the last few years, the answer to that came with the field of quantum-inspired super-resolution (QISR), where quantum metrological techniques were used to find novel measurement schemes that, beyond the conventional direct imaging of light, would achieve higher precisions. …”