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We present an experimental investigation of coherent crosstalk cancellation methods for light delivered to a linear ion chain cryogenic quantum register. The ions are individually addressed using focused laser beams oriented perpendicular…

Optomechanical crystals (OMCs) are a promising and versatile platform for transduction between mechanical and optical fields. However, the release from the substrate used in conventional suspended OMCs also prevents heat-carrying noise…

量子物理 · 物理学 2023-07-25 Johan Kolvik , Paul Burger , Joey Frey , Raphaël Van Laer

Crosstalk is a major concern in the implementation of large-scale quantum computation since it can degrade the performance of qubit addressing and cause gate errors. Finding the origin of crosstalk and separating contributions from…

量子物理 · 物理学 2022-06-23 Peng Zhao , Yingshan Zhang , Xuegang Li , Jiaxiu Han , Huikai Xu , Guangming Xue , Yirong Jin , Haifeng Yu

A recent computational result suggests that highly confined modes can be realized by all-dielectric metamaterials (S. Jahani et. al., Optica 1, 96 (2014)). This substantially decreases crosstalk between dielectric waveguides, paving the way…

光学 · 物理学 2016-11-14 Amin Khavasi , Lukas Chrostowski , Zeqin Lu , Richard Bojko

The single-top production cross section is one third that of the top-pair production cross section at the LHC. During a year of data-taking, assuming an average luminosity of 10^33 cm-2 s-1 and a CMS energy of 14 TeV, the determination of…

高能物理 - 实验 · 物理学 2008-12-01 P. Ryan

The CMS-TOTEM Precision Proton Spectrometer (CT-PPS) is an approved project to add tracking and timing information at approximately $\pm$210~m from the interaction point around the CMS detector. It is designed to operate at high luminosity…

仪器与探测器 · 物理学 2017-04-05 Michele Gallinaro

This article presents measurements of the $t$-channel single top-quark ($t$) and top-antiquark ($\bar{t}$) total production cross sections $\sigma(tq)$ and $\sigma(\bar{t}q)$, their ratio $R_t=\sigma(tq)/\sigma(\bar{t}q)$. Differential…

高能物理 - 实验 · 物理学 2014-12-09 Dominic Hirschbuehl

Crosstalk between target and neighboring spectator qubits due to spillover of control signals represents a major error source limiting the fidelity of two-qubit entangling gates in quantum computers. We show that in our laser-driven…

量子物理 · 物理学 2022-12-21 Chao Fang , Ye Wang , Shilin Huang , Kenneth R. Brown , Jungsang Kim

The Hamamatsu UV-light enhanced 64-channel SiPM array of the newest generation (S13361-3050AS-08) has been examined for the purpose of being used for the Silicon Elementary Cell Add-on (SiECA) of the EUSO-SPB balloon experiment.…

Cross-talk between qubits is one of the main challenges for scaling superconducting quantum processors. Here, we use the density-matrix renormalization-group to numerically analyze lattices of superconducting qubits from a perspective of…

量子物理 · 物理学 2025-12-08 F. Lange , L. Heunisch , H. Fehske , D. P. DiVincenzo , M. J. Hartmann

Measurements of the cross sections for the production of single top quarks and antiquarks in the $t$ channel, and their ratio, are presented for proton-proton collisions at a center-of-mass energy of 13 TeV. The data set used was recorded…

高能物理 - 实验 · 物理学 2019-11-15 CMS Collaboration

Parasitic crosstalk in superconducting quantum devices is a leading limitation for quantum gates. We demonstrate the suppression of static ZZ crosstalk in a two-qubit, two-coupler superconducting circuit, where the frequency of a tunable…

量子物理 · 物理学 2019-11-13 Pranav S. Mundada , Gengyan Zhang , Thomas Hazard , Andrew A. Houck

Single top quarks in the $t$ channel are produced though the electroweak force and are therefore an excellent way to probe the electroweak sector of the standard model with top quark physics. The recent cross section measurement of single…

高能物理 - 实验 · 物理学 2017-11-07 Nils Faltermann

Constraints on models which predict resonant top-quark pair production at the LHC are provided via a reinterpretation of the Standard Model (SM) particle level measurement of the top-anti-top invariant mass distribution, $m(t\bar{t})$. We…

高能物理 - 唯象学 · 物理学 2018-02-28 Diogo Buarque Franzosi , Federica Fabbri , Steffen Schumann

We suggest to excite dipole-forbidden transitions in quantum-mechanical systems by using appropriately designed optical nanoantennas. The antennas are tailored such that their near-field contains sufficiently strong contributions of…

The use of silicon photomultipliers (SiPMs) alongside conventional photomultiplier tubes (PMTs) is a remarkable technological development in modern ground-based very high energy gamma-ray astronomy. SiPMs exhibit comparable or even higher…

The photo-driven process of singlet fission generates coupled triplet pairs (TT) with fundamentally intriguing and potentially useful properties. The quintet 5TT0 sublevel is particularly interesting for quantum information because it is…

In quantum optics and its applications, there is an urgent demand for photon-number resolving detectors. Recently, there appeared multi-pixel detectors (MPPC) that are able to distinguish between 1,2,..10 photons. At the same time, strong…

量子物理 · 物理学 2015-05-20 Dmitry A. Kalashnikov , Si-Hui Tan , Maria V. Chekhova , Leonid A. Krivitsky

A single photoelectron can be trapped and its photoelectric charge detected by a source/drain channel in a transistor. Such a transistor photodetector can be useful for flagging the safe arrival of a photon in a quantum repeater. The…

The measurement of the top quark polarization, sensitive to the electroweak coupling structure, in t-channel single-top production is presented. Events are analyzed corresponding to an integrated luminosity of approximately…

高能物理 - 实验 · 物理学 2019-08-13 Matthias Komm