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Related papers: Radio VLBI and the quantum interference paradox

200 papers

It has been shown that shared entanglement between two telescope sites can in principle be used to localize a point source by mimicking the standard phase-scanning interferometer, but without physically bringing the light from the distant…

Quantum Physics · Physics 2026-01-08 Isack Padilla , Aqil Sajjad , Babak N. Saif , Saikat Guha

One of the key features of quantum mechanics is the interference of probability amplitudes. The reason for the appearance of interference is mathematically very simple. It is the linear structure of the Hilbert space which is used for the…

Quantum Physics · Physics 2010-09-02 Martin Stefanak

The two-photon ghost interference experiment, generalized to the case of massive particles, is theoretically analyzed. It is argued that the experiment is intimately connected to a double-slit interference experiment where, the which-path…

Quantum Physics · Physics 2012-04-03 Pravabati Chingangbam , Tabish Qureshi

The growing need for electromagnetic spectrum to support the next generation (xG) communication networks increasingly generate unwanted radio frequency interference (RFI) in protected bands for radio astronomy. RFI is commonly mitigated at…

Signal Processing · Electrical Eng. & Systems 2022-11-01 Shuvam Chakraborty , Gregory Hellbourg , Maqsood Careem , Dola Saha , Aveek Dutta

In the first TABASCAL paper we showed how to calibrate in the presence of Radio Frequency Interference (RFI) sources by simultaneously isolating the trajectories and signals of the RFI sources. Here we show that we can accurately remove RFI…

Instrumentation and Methods for Astrophysics · Physics 2025-10-01 Chris Finlay , Bruce A. Bassett , Martin Kunz , Nadeem Oozeer

Multi-photon interference results in modulations of output probabilities with phase shift periods that are much shorter than 2 Pi. Here, we investigate the physics behind these statistical patterns in the case of well-defined photon numbers…

Quantum Physics · Physics 2016-10-12 Holger F. Hofmann , Keito Hibino , Kazuya Fujiwara , Jun-Yi Wu

Interactions between solid-state quantum emitters and cavities are important for a broad range of applications in quantum communication, linear optical quantum computing, nonlinear photonics, and photonic quantum simulation. These…

Quantum Physics · Physics 2016-11-11 Je-Hyung Kim , Christopher J. K. Richardson , Richard P. Leavitt , Edo Waks

We discuss quantum and classical aspects of two-photon interference in light transmission through disordered media. We show that disorder is the main factor that suppresses the interference, whatever the quantum state of the incident light.…

Quantum Physics · Physics 2013-02-01 Manutea Candé , Sergey E. Skipetrov

We report on the effects of quantum interference induced by transmission of an arbitrary number of optical quantum states through a multiple scattering medium. We identify the role of quantum interference on the photon correlations and the…

Quantum Physics · Physics 2010-08-31 J. R. Ott , N. A. Mortensen , P. Lodahl

The wave-particle duality is the main point of demarcation between quantum and classical physics, and is the quintessential mystery of quantum mechanics. Young's two-slit interference experiment is the arch prototype of actual and gedanken…

General Physics · Physics 2007-05-23 Mario Rabinowitz

It is commonly assumed that the observation of an interference pattern is incompatible with any information about the path taken by a quantum particle. Here we show that, contrary to this assumption, the experimentally observable effects of…

Quantum Physics · Physics 2023-12-04 Holger F. Hofmann , Tomonori Matsushita , Shunichi Kuroki , Masataka Iinuma

Summarizes current status of radio interferometry at radio frequencies between Earth-based receivers, for astrometric and geodetic applications. Emphasizes theoretical models of VLBI observables that are required to extract results at the…

Astrophysics · Physics 2008-11-26 Ojars J. Sovers , John L. Fanselow , Christopher S. Jacobs

Quantum physics rules the dynamics of small objects as they interact over microscopic length scales. Nevertheless, quantum correlations involving macroscopic distances can be observed between entangled photons as well as in atomic gases and…

Quantum Physics · Physics 2026-05-28 Cruz I. Velasco , Valerio Di Giulio , F. Javier García de Abajo

Generating and interfering non-classical states of light is fundamental to optical quantum information science and technology. Quantum photonic integrated circuits provide one pathway towards scalability by combining nonlinear sources of…

A patch of sky in the SDSS Stripe 82 was observed at 1.6 GHz with Very Long Baseline Interferometry (VLBI) using the European VLBI Network (EVN). The data were correlated at the EVN software correlator at JIVE (SFXC). There are fifteen…

Astrophysics of Galaxies · Physics 2014-06-19 H. -M. Cao , S. Frey , L. I. Gurvits , J. Yang , X. -Y. Hong , Z. Paragi , A. T. Deller , Ž. Ivezić

Geodetic Very Long Baseline Interferometry (VLBI) data are capable of measuring the light deflection caused by the gravitational field of the Sun and large planets with high accuracy. The parameter $\gamma$ of the parametrized…

We propose two optimal phase-estimation schemes that can be used for quantum-enhanced long-baseline interferometry. By using distributed entanglement, it is possible to eliminate the loss of stellar photons during transmission over the…

Quantum Physics · Physics 2023-11-17 Robert Czupryniak , John Steinmetz , Paul G. Kwiat , Andrew N. Jordan

Interference is the mechanism through which waves can be structured into the most fascinating patterns. While for sensing, imaging, trapping, or in fundamental investigations, structured waves play nowadays an important role and are…

We present a quantum fingerprinting protocol relying on two-photon interference which does not require a shared phase reference between the parties preparing optical signals carrying data fingerprints. We show that the scaling of the…

Quantum Physics · Physics 2018-02-20 Michał Jachura , Michał Lipka , Marcin Jarzyna , Konrad Banaszek

The recent development of a relatively inexpensive 16-Gbps data-recording system based on commercial off-the-shelf technology and open-source software, along with parallel development in broadband Very Long Baseline Interferometry (VLBI)…