Category Archives: Quantum Information and Quantum Computation: General Discussions

A useful source of information and discussion on all subjects related to Quantum Information and Quantum Computation.

Our latest paper: “Factorization and criticality in finite interacting spin systems under a nonuniform magnetic field”

Our latest paper just got published by Physical Review Letter! Let me briefly explain what our manuscript is about: Factorization and criticality in finite interacting spin systems under a nonuniform magnetic field   Exact ground states of strongly interacting spin … Continue reading

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Why we should be talking about the ethics of quantum computation

Gyges was a shepherd in the service of the king of Lydia; there was a great storm, and an earthquake made an opening in the earth at the place where he was feeding his flock. Amazed at the sight, he … Continue reading

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Tools for Drawing Quantum Circuits

Last night I was writing an article for the series “The more You Know” to add to my Dictionary of Quantum Information and Quantum Computation and I ran across the need to draw a Quantum Circuit. Although my first thought was … Continue reading

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Announcement: Introducing Entangled Physics New Logo

I am very proud to present Entangled Physics new identity. This logo is composed by two entangled atoms bound by an infinite. It’s design is clean, modern and friendly, and the text “Entangled Physics” is written in an easily readable … Continue reading

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Entangled particles, faster than light communications and the no-cloning theorem

In 1982, a paper entitled “FLASH – A Superluminal Communicator Based Upon a New Kind of Quantum Measurement” was published by Nick Herbert, an American physicist who meant to prove that by using EPR entangled pairs and quantum effects, a … Continue reading

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Entanglement (II): Non-locality, Hidden Variables and Bell’s Inequalities.

In the first article of this series, we studied Einstein, Podolski and Rosen’s paper, where we encountered for the first time the concept of quantum entangled stated and their “spooky action at a distance”. As EPR realized, when particles interact (under certain … Continue reading

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EPR’s Paradox Exemplified: Bohm’s Spin Experiment

After my post on Einstein, Podolski and Rosen’s paradox, a few of you guys asked me about how is it possible for both the position and momentum of a particle to be elements of reality at the same time. In particular, … Continue reading

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V Quantum Information School and Workshop – Paraty 2015

As you can see here, there will be a School and Workshop about Quantum Information to be hosted in Paratay, Brasil (if you aren’t sure about wanting to attend, just do a quick google image search on Paratay Prasil, that will do … Continue reading

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This Blog’s Motivation: A Brief Introduction to Quantum Information and Quantum Computation

To me quantum computation is a new and deeper and better way to understand the laws of physics, and hence understanding physical reality as a whole. We are really only scratching the surface of what it is telling us about … Continue reading

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Entanglement (I): how it all began, the EPR Paradox.

Being this the first article of this blog, I was torn as to where to begin. This is mainly because the fields of study of Quantum Information and Quantum Computation (QI and QC) are very wide and can be introduced in many ways. … Continue reading

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