Quantum Information (QI) - BYU Physics and Astronomy

... What will we do? CP, HW, IP, MT, F How do you communicate? Sources for QI? (Linear Algebra prerequisite) What is Linear Algebra? ...

... What will we do? CP, HW, IP, MT, F How do you communicate? Sources for QI? (Linear Algebra prerequisite) What is Linear Algebra? ...

Lecture 4

... What does that mean? There might be a deeper „classical“ theory that allows to eliminate the probabilistic predictions of quantum mechanics by referring to „hidden parameters“ The state 1/21/2 (|00i+|11i) on two spatially separated qubits exhibits „spooky actions at a distance“: when measured it beh ...

... What does that mean? There might be a deeper „classical“ theory that allows to eliminate the probabilistic predictions of quantum mechanics by referring to „hidden parameters“ The state 1/21/2 (|00i+|11i) on two spatially separated qubits exhibits „spooky actions at a distance“: when measured it beh ...

A quantum point contact for ultra cold Fermions

... Fermi gas of atoms [1]. We employ ultra-high resolution lithography to shape light potentials that realize either a quantum point contact or a quantum wire for atoms. These constrictions are imprinted on a quasi two-dimensional ballistic channel connecting two adjustable reservoirs of quantum degene ...

... Fermi gas of atoms [1]. We employ ultra-high resolution lithography to shape light potentials that realize either a quantum point contact or a quantum wire for atoms. These constrictions are imprinted on a quasi two-dimensional ballistic channel connecting two adjustable reservoirs of quantum degene ...

Topological Insulators

... a highly desirable goal in quantum information science. Unfortunately, the only physical system in which anything approaching topological protection has been seen is a two-dimensional particle gas experiencing the fractional quantum Hall effect. That effect requires formidable extremes of low temper ...

... a highly desirable goal in quantum information science. Unfortunately, the only physical system in which anything approaching topological protection has been seen is a two-dimensional particle gas experiencing the fractional quantum Hall effect. That effect requires formidable extremes of low temper ...

Toffoli gate

... A classical information channel can not transmit quantum information Remember: no cloning theorem? Quantum states can not be copied! ...

... A classical information channel can not transmit quantum information Remember: no cloning theorem? Quantum states can not be copied! ...

Linear Circuit Analysis with Reactive Components

... Solving the Schrödinger Equation on a 2D Lattice in Quantum Wave Interference (QWI) PhET Sam Reid Quantum Wave Interference allows the user to visualize the propagation of a wavefunction in the presence of potential barriers and detectors. We implement a 2D Richardson algorithm[1], a local propagati ...

... Solving the Schrödinger Equation on a 2D Lattice in Quantum Wave Interference (QWI) PhET Sam Reid Quantum Wave Interference allows the user to visualize the propagation of a wavefunction in the presence of potential barriers and detectors. We implement a 2D Richardson algorithm[1], a local propagati ...

Atomic Structure and Quantum Theory

... one orbit to another causes the emission or absorption of EM radiation (light)… spectra ...

... one orbit to another causes the emission or absorption of EM radiation (light)… spectra ...

T The quantum and classical properties of spins on surfaces

... magnetic atoms on a surface behaves similar to a classical magnetic particle: it’s magnetization points along an easyaxis direction in space and magnetization reversal requires sufficient thermal energy to overcome a barrier. In this talk we will discuss how many atoms it takes to create such create ...

... magnetic atoms on a surface behaves similar to a classical magnetic particle: it’s magnetization points along an easyaxis direction in space and magnetization reversal requires sufficient thermal energy to overcome a barrier. In this talk we will discuss how many atoms it takes to create such create ...

2.4 Density operator/matrix

... 2) This property is merely revealed by the experiment. 3) The property can not be influenced by any measurement done at another location at the same time (locality assumption) Local realistic description of the Bell state measurement Charlie prepares a set of pairs of classical particles. Each p ...

... 2) This property is merely revealed by the experiment. 3) The property can not be influenced by any measurement done at another location at the same time (locality assumption) Local realistic description of the Bell state measurement Charlie prepares a set of pairs of classical particles. Each p ...

Instructions for Preparing Abstracts for MS+S2004

... larger than that of Rydberg (ordinary) atom coupled to a single photon in a high-Q cavity [6]. This is the direct evidence that strong coupling condition can be rather easily established in the case of macroscopic superconducting quantum circuit, because of the huge number of condensed Cooper pairs ...

... larger than that of Rydberg (ordinary) atom coupled to a single photon in a high-Q cavity [6]. This is the direct evidence that strong coupling condition can be rather easily established in the case of macroscopic superconducting quantum circuit, because of the huge number of condensed Cooper pairs ...

Quantum Number Table

... Largely defines energy of electron. As n increases, so does its energy and radial distance from nucleus. Higher energy state equates to greater ease at removing the electron. Defines the shape of the orbital. Each numerical value of "l" has a matching letter designation. value of l: 0 1 2 3 letter: ...

... Largely defines energy of electron. As n increases, so does its energy and radial distance from nucleus. Higher energy state equates to greater ease at removing the electron. Defines the shape of the orbital. Each numerical value of "l" has a matching letter designation. value of l: 0 1 2 3 letter: ...

here - Dalibor Hrg

... Review / Quantum computing (R. Feynman,Caltech,1982.) – impossibility to simulate quantum system! (D. Deutsch, Oxford, CQC, 1985.) – definition of Quantum Turing machine, quantum class (BQP) and first quantum ...

... Review / Quantum computing (R. Feynman,Caltech,1982.) – impossibility to simulate quantum system! (D. Deutsch, Oxford, CQC, 1985.) – definition of Quantum Turing machine, quantum class (BQP) and first quantum ...

Quantum teleportation is a process by which quantum information (e.g. the exact state of an atom or photon) can be transmitted (exactly, in principle) from one location to another, with the help of classical communication and previously shared quantum entanglement between the sending and receiving location. Because it depends on classical communication, which can proceed no faster than the speed of light, it cannot be used for faster-than-light transport or communication of classical bits. It also cannot be used to make copies of a system, as this violates the no-cloning theorem. While it has proven possible to teleport one or more qubits of information between two (entangled) atoms, this has not yet been achieved between molecules or anything larger.Although the name is inspired by the teleportation commonly used in fiction, there is no relationship outside the name, because quantum teleportation concerns only the transfer of information. Quantum teleportation is not a form of transportation, but of communication; it provides a way of transporting a qubit from one location to another, without having to move a physical particle along with it.The seminal paper first expounding the idea was published by C. H. Bennett, G. Brassard, C. Crépeau, R. Jozsa, A. Peres and W. K. Wootters in 1993. Since then, quantum teleportation was first realized with single photons and later demonstrated with various material systems such as atoms, ions, electrons and superconducting circuits. The record distance for quantum teleportation is 143 km (89 mi).