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The frequency selectivity of wireless communication channels can be characterized by the delay spread Ds of the channel impulse response. If the delay spread is small compared to the bandwidth W of the input signal, that is, Ds*W…

信息论 · 计算机科学 2008-08-07 Georg Böcherer , Daniel Bielefeld

For a single transmit and receive antenna system, a new constellation design is proposed to combat errors in the phase estimate of the channel coefficient. The proposed constellation is a combination of PSK and PAM constellations, where PSK…

信息论 · 计算机科学 2010-10-11 Naqueeb Warsi , Rahul Vaze , Tapan Shah

We propose a cross-attention Transformer for joint decoding of uplink OFDM signals received by multiple coordinated access points. A shared per-receiver encoder learns the time-frequency structure of each grid, and a token-wise…

信号处理 · 电气工程与系统科学 2026-04-08 Xavier Tardy , Grégoire Lefebvre , Apostolos Kountouris , Haïfa Fares , Amor Nafkha

In multiuser multiple-input multiple-output (MU-MIMO) systems, channel correlation is detrimental to system performance. We demonstrate that widely used, yet overly simplified, correlation models that generate identical correlation profiles…

We study the $\Lambda(1520)$ resonance in a coupled channel approach involving the $\pi\Sigma(1385)$, $K\Xi(1530)$, $\bar{K}N$ and $\pi\Sigma$ channels. Implementing unitarity in coupled channels, we make an analysis of the relative…

高能物理 - 唯象学 · 物理学 2008-11-26 L. Roca , Sourav Sarkar , V. K. Magas , E. Oset

We propose a new probe of inflationary gravitational waves (IGWs): the cross-correlation of the lensing of inflationary $B$-mode polarization with a large-scale structure (LSS) tracer, which can also be a cosmic microwave background (CMB)…

宇宙学与河外天体物理 · 物理学 2024-12-30 Toshiya Namikawa , Blake D. Sherwin

We present a study of the transmission of electrons through a semiconductor quantum wire with strong spin-orbit coupling in proximity to an s-wave superconductor, which is Coulomb-blockaded. Such a system supports Majorana zero modes in the…

介观与纳米尺度物理 · 物理学 2018-10-17 Casper Drukier , Heinrich-Gregor Zirnstein , Bernd Rosenow , Ady Stern , Yuval Oreg

Using the integral equations of the Noncrossing Approximation, the differential conductance is computed as a function of voltage for scattering from a two channel Kondo impurity in a point contact. The results compare well to experimental…

凝聚态物理 · 物理学 2009-10-22 Matthias H. Hettler , Johann Kroha , Selman Hershfield

Transmission eigenchannels and quasi-normal modes are powerful bases for describing wave transport and controlling transmission and energy storage in disordered media. Here we elucidate the connection between these approaches by expressing…

无序系统与神经网络 · 物理学 2014-06-17 Zhou Shi , Azriel Genack

We investigate cross-correlations in the tunneling currents through two parallel quantum dots coupled to independent electrodes and gates and interacting via an inter-dot Coulomb interaction. The correlations reveal additional information,…

介观与纳米尺度物理 · 物理学 2008-02-26 Sebastian Haupt , Jasmin Aghassi , Matthias H. Hettler , Gerd Sch"on

We theoretically investigate the quantum transports in a junction between a superconductor and a silicene nanoribbon, under the effect of a magnetic exchange field. We find that for a narrow nanoribbon of silicene, remarkable crossed…

介观与纳米尺度物理 · 物理学 2016-10-26 Kangkang Li , Yan-Yang Zhang

We study the conductance of phase-coherent disordered quantum wires focusing on the case in which the number of conducting channels is imbalanced between two propagating directions. If the number of channels in one direction is by one…

介观与纳米尺度物理 · 物理学 2009-11-13 Yositake Takane , Shingo Iwasaki , Yuka Yoshioka , Masayuki Yamamoto , Katsunori Wakabayashi

The transmission matrix of a disordered medium, experimentally accessible for classical waves and central to the theory of mesoscopic electronic transport, supports transmission eigenchannels ranging from complete to vanishing transmission.…

光学 · 物理学 2026-05-19 Israel Kurtz , Yiming Huang , Zhou Shi , Azriel Z Genack

The complexity of threshold phenomena is exemplified on a prominent and long-known case - the structure in the $\Lambda p$ cross section (invariant mass spectrum) at the opening of the $\Sigma N$ channel. The mass splitting between the…

核理论 · 物理学 2021-09-28 J. Haidenbauer , U. -G. Meißner

There is a consensus that superconductivity (SC) in cuprates is two-dimensional. It is widely believed that the long-range phase coherence appears at T_{c} due to the Josephson coupling between SC CuO_{2} (bi-, tri-, >...)layers. Recent…

超导电性 · 物理学 2009-10-31 A. Mourachkine

We illuminate the superconducting phases in [001]-grown-noncentrosymmetric quantum wells with an anisotropic spin-orbit coupling in the presence of on-site Hubbard interaction. Within the random phase approximation, we investigate the…

超导电性 · 物理学 2019-06-20 Mehdi Biderang , Mohammad-Hossein Zare , Alireza Akbari

It is demonstrated that non local Cooper pairs can propagate in ferromagnetic electrodes having an opposite spin orientation. In the presence of such crossed correlations, the superconducting gap is found to depend explicitly on the…

介观与纳米尺度物理 · 物理学 2009-10-31 R. Mélin

This paper adresses the behaviour of the mutual information of correlated MIMO Rayleigh channels when the numbers of transmit and receive antennas converge to infinity at the same rate. Using a new and simple approach based on…

信息论 · 计算机科学 2007-07-13 Walid Hachem , Oleksiy Khorunzhiy , Philippe Loubaton , Jamal Najim , Leonid Pastur

The $\alpha$ inelastic scattering on $^{16}$O is investigated with the coupled-channel calculation using the $\alpha$-nucleus coupled-channel potentials, which are microscopically derived by folding the the Melbourne $g$-matrix $NN$…

核理论 · 物理学 2019-06-19 Yoshiko Kanada-En'yo , Kazuyuki Ogata

Relay cooperation and integrated microwave and millimeter-wave (mm-wave) dual-band communication are likely to play key roles in 5G. In this paper, we study a two-user uplink scenario in such dual-bands, modeled as a multiple-access relay…

信息论 · 计算机科学 2019-06-12 Subhajit Majhi , Patrick Mitran