Discussions on Session 6A:Applications of quantum coherence
نویسندگان
چکیده
منابع مشابه
Quantum oscillations without quantum coherence.
We study numerically the damping of quantum oscillations and the dynamics of the density matrix in model many-spin systems decohered by a spin bath. We show that oscillations of some density matrix elements can persist with considerable amplitude long after other elements, along with the entropy, have come close to saturation, i.e., when the system has been decohered almost completely. The osci...
متن کاملQuantum privacy and quantum coherence
We derive a simple relation between a quantum channel’s capacity to convey coherent (quantum) information and its usefulness for quantum cryptography. Typeset using REVTEX 1 A quantum communication channel can be used to perform a variety of tasks, including: • Conveying classical information from a sender to a receiver. • Conveying quantum information (including quantum entanglement) from a se...
متن کاملQuantum computers and quantum coherence
If the states of spins in solids can be created, manipulated, and measured at the single-quantum level, an entirely new form of information processing, quantum computing, will be possible. We "rst give an overview of quantum information processing, showing that the famous Shor speedup of integer factoring is just one of a host of important applications for qubits, including cryptography, counte...
متن کاملOn group theory for quantum gates and quantum coherence
Finite group extensions offer a natural language to quantum computing. In a nutshell, one roughly describes the action of a quantum computer as consisting of two finite groups of gates: error gates from the general Pauli group P and stabilizing gates within an extension group C. In this paper one explores the nice adequacy between group theoretical concepts such as commutators, normal subgroups...
متن کاملExploring coherence relationships in online group discussions around Web documents
A central aspect of coherence in asynchronous computer-mediated communication is how a message connects to previous messages in a dialogue. This is also a frequent source of problems for users: because of the time delay and the fact that several conversations may be going on simultaneously, the participants in an online discussion may need support for placing a message in a discourse context. T...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Procedia Chemistry
سال: 2011
ISSN: 1876-6196
DOI: 10.1016/j.proche.2011.08.042