Communication Definition and 321 Threads

Homework Statement Transfer data from stand-alone application written in C/++/# to web application written in C#.NET. Transfer data from web application written in C#.NET to stand-alone application written in C/++/#. Homework Equations The stand-alone application runs on my PC and the web...

https://www.inc.com/brian-hart/astrophysicist-neil-degrasse-tyson-explains-the-mo.html a quote from the article:

Specifically do we know how the two parties (photons) involved communicate ? how does the state information transferred. Is it transferred by some waves similar to radio waves ? I somehow still can not believe that its real.

Can somebody explain what is a quantum channel through which quantum objects communicate? I recently heard that one can communicate without sending particles. https://phys.org/news/2017-05-counterfactual-quantum.html

<Moderator's note: Moved from a technical forum and therefore no template, which would have helped a lot in this case ...> i know that mark time is duration in which a pulse is present and space time is a duration is which pulse is not present. my attempt to ques is: f= 25000Hz...>...

I need a RF network that has this : 1) two way communication. 2) Security 3) can work in a 3.5 x 1.5 mile community : with houses, trees, buildings and a park ( https://en.wikipedia.org/wiki/Box_Hill_North,_Victoria). 4) have about 1000 endpoints. 5) low power and low cost would Xbee be...

Damn near gagged on my breakfast this morning when reading the last sentence in an article in Time Magazine by Jeffry Kluger (a "senior writer at Time Magazine") where he said: I know we've all seen this kind of horse manure before but that doesn't make it any more palatable.

Imagine a small cylinder with a dot at the top. Rotating the cylinder 1 degree clockwise of 0 degrees could signify a 1; and 1 degree anticlockwise of 0 degrees a zero. 0 degrees would be a space. Someone rotating one end of the cylinder would cause the other end of the cylinder to rotate...

Lots of people have wondered about whether we can get FTL communication from entanglement. My question is slightly different. Is it impossible to get FTL communication out of entanglement? If it has been shown to be impossible, then we can shut off the entanglement-FTL avenue altogether and...

Bell scenarios with communication J B Brask and R Chaves Journal of Physics A: Mathematical and Theoretical, Volume 50, Number 9 (https://arxiv.org/abs/1607.08182) Abstract Classical and quantum physics provide fundamentally different predictions about experiments with separate observers that...

I need some industrial applications where IR is used for communication. Also I need to know whether can I use it to transmit my measured data of torque and temperature (measured using RTD and strain gauge) from a Rotating shaft running at 7500 rpm through IR communication ?

Imagine that we had discovered an habitable planet, Planet X, located 10 light years away from Earth, and that we had managed to establish a small colony there. Now imagine that because of a much stronger gravity than on Earth, time on Planet X would run 5 times slower than on Earth: 1 year on...

I've been thinking about a communication system that could allow faster than light communication. The basic principle that would make this system work come from the double-slit experiment and Wheleer's delayed choice experiment, taking advantage of the different patterns that would appear on a...

We all know about the launching of a entanglement based communication satellite by China. But, once a Prof. of Quantum physics has told me that it's even "theoretically impossible" as it will be violation of the "law of casualty" as the two points get information ahead of the speed of light to...

What are the problems facing engineers with communicating information

Hello, I have an arduino code for driving a peltier pile to a given set point (TEMP_SP). I am trying to input the set temperature from Matlab GUI (with different protocols, user will enter n temperatures and the time intervals, arduino will implement the PID controller and output the...

Homework Statement Hi everyone. I was trying to solve an exercise from the book Leon couch, communication systems, number 3.7 of the 6th edition. This is the statement: In a PCM binary system, the quantisation noise mustn t exceed the percentage value P of the peak power. Show that the...

With a modest understanding of 'spooky action at a distance', I've been informed that using entangled particles as a form of quantum bit system would not work for vast distances. It wouldn't be a viable option to communicate instantly with points like our moon, satellites orbiting Jupiter, or...

If a quantum communication device based in interlakced particles equipped with powerful telescope and radio receiver is placed far away some millions is years light. Then the images and radio signals detected, could belong to the future or past. And this info from the future or past can be...

Is there any theoretical room for wireless communication that does not require EMF and would be unhindered by RF blocking materials or Faraday cages?

A source that is orbiting close to a singularity of a black hole is transmitting a radio frequency signal that lasts 60 seconds and is repeated infinitely. The signal is being transmitted using the amplitude modulation method (AM Radio). Let suppose that each minute passing in the transmitting...

is it possible to entangle two particles and then separate them buy a large distance, and then interfere with one of the particles and observe this in the other, like a quantum communication system that is faster than light?

If entangled pairs can be used to communicate instantaneously, does that mean one of the paired particles has to be physically delivered to the reception point in order to establish communication?

For a hobby project I got a couple of RF modules, a QAM rx2 433 receiver and a DSQAM tx1 transmitter. I understand they need some kind of TTL to work, would just using some NAND gates hooked up to the transmitter and receiver be enough or do I need something more fancy like encoders and decoders?

Faster-than-light communication is not allowed in this universe. Imagine a sister universe that looks much the same as ours but allows instant communication between any two points. In that universe, simultaneity can be established using instantaneous communication. How would that affect our*...

Hello! I am wondering if it is theoretically possible to allow a means of data transfer (or internet, etc.) by the idea of quantum entanglement. Correct me if I make any errors in understanding. But, by what I understand, in essence you could for instance run a computation on a quantum computer...

So, I've been wondering: how would time dilation affect communications? For the sake of visualisation, imagine the Flash is running at 99% the speed of light in a circle around a fixed position. There's a building in this position, and inside this building are his friends. Due to time dilation...

Hi there, Wifi uses either 2.5 GHZ band or 5 Ghz band and these bands lie in Microwave in EM spectrum. As i read in books, Microwaves are propagated using line of sight (LOS) technique, so sending and receiving antennas should need to be aligned accordingly. But WiFi signals are broadcasted...

Hello, here is some reasoning how I got possibility to communicate faster than light. Likely somewhere are mistakes, but I can not find them by myself. Let's consider very simple setup with observers Alice, Bob and a source of entangled photons in-between of them like so...

I recently stumbled across quantum entanglement and thought of an experiment. I know that the laws of physics forbid FTL communication, can anyone tell me what's wrong in my following experiment? Information, in classical bits, consists of two states, 1 and 0. To my shallow knowledge, when an...

Hi all, this is my first post so before my question I want to show my appreciation to this community for offering a great framework to talk physics between experts and others who chose different life career paths, such as me. I have always loved physics but the math... not that much. English is...

As far as I can tell Eberhard and Ross didn't "prove" quantum entanglement can't implement FTL communication in "QUANTUM FIELD THEORY CANNOT PROVIDE FASTER-THAN-LIGHT COMMUNICATION", 1988 (http://link.springer.com/article/10.1007%2FBF00696109). But it's often cited as such a proof, in threads on...

So I was wandering why it is not possible to use quantum particles to communicate across vast distances. As I understand it we cannot send information using this as it would break the laws of physics but what I was wandering is why can't we us entangled particles in a binary why by changing the...

Refer to this image: http://imgur.com/xT20HOv The white nodes are 'stations' which broadcast signals at light speed. The blue circles around them represent the particle horizon relative to these nodes. The pink nodes are intermediary stations in between these stations that pass on the signal...

Here’s an interesting bit of research regarding how bacteria communicate through ion channels. It talks about biofilms which I understand as being thin films of bacteria that colonize the surface of teeth for example: The bacteria then communicate using what sounds like a 2 dimensional EM wave...

So quantum entanglement acts faster than light but it's not technically communication and not actually transferring "information"? Can someone explain this to me?

Homework Statement Is sky wave signal less stable than ground wave signal? Homework Equations None The Attempt at a Solution Ground waves face attenuation because when it glides over the surface of earth, there will be induced fields which can oppose the wave. In case of sky waves, it...

I am doing my thesis now and I will write it in Latex. But I need some kind of program to draw figures on communication symbols such as antennas, ADC converters, block diagrams with addition/subtraction/multiplication. Probably this can be done in Latex, if so i would need some guidance on...

I am trying to build my own communication / listening dish, multi frequency antenna, basically my own deep space antenna network. how to get the needed supply for such endeavour? help with any info on this, a new field for me. thanks!

Homework Statement Explain how polarizing light shows light travels as a transverse wave. The Attempt at a Solution Light is generally an un-polarized electromagnetic wave but there are different ways that light waves are able to be polarized. I am unclear how the process of polarizing light...

The FCC's propagation models for the FM broadcast band seem grotesquely inaccurate in some places, where stations can be received that the models say are absolutely out of range. I'm not even talking about DX conditions like ducting or skip, I'm talking about baseline. When I lived in...

In this paper http://dx.doi.org/10.1103/PhysRevA.47.R747 Eberhard derives Bell type inequality from these assumptions: A theory is defined as being "local" if it predicts that, among these possible sequences of events [with the same number of events N], one can find four sequences (one for each...

There are lots of sci-fi settings in which Mankind has become an interstellar civilization and lives on numerous planets throughout its galaxy. However, if the fastest we can communicate is at the speed of light, we will have to wait ages to receive a message between planets. Does this mean...

Quantum Communication. All systems described by quantum mechanics can display so-called entanglement, for example, the spin of one electron cannot be known in advance of a measurement yet will be perfectly correlated with the other, even if it is in a distant location. This has recently been...

I have recently begun reading about human language and how it works. An obvious question that sprang to mind relates to efforts to communicate with other animals. I read Irene Pepperberg's book about her experiences with Alex the parrot, and I have seen video of interaction with Koko the...

I'm working on an illustrative analogy for instantaneous communication by entangled particles. I am planning to write something along these lines, but I want to see if anyone can tell me if I'm missing something here: "Imagine a rod that is connected in a frictionless and weightless...

Hello, I am Miles. My interests are very broad. I work in the fields of energy, communications, and space transportation, developing new systems that can hopefully solve some significant problems in these areas. My primary backgrounds are chemistry and electrical engineering, but I've...

So I am starting College this year. However, I can't decide which programme I should go with. The first option is bachelor in IT and Communication. This programme has deep content of communication (networking), but it doesn't have courses like Algorithms, Database Systems, Digital Circuits...

Hi there. I have been studying on Bell Inequalities and hidden variables problem for quite some time now however my general knowledge on the problem of superluminal communication is superficial at best. I know that non of the standing interpretations (Everett, Copenhagen, Bohmian, QBist etc.)...

Although there are numerous questions about entanglement and FTL communication, I can't find anything directly related to this. I proposed a method for FTL communication via GHZ multi-particle entanglement at...