Macroscopic Quantum Coherence and Quantum Computing

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Dmitri V. Averin, Berardo Ruggiero, Paolo Silvestrini
Springer Science & Business Media, 6 dic 2012 - 460 pagine
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This volume is an outgrowth of the Second International Workshop on Macroscopic Quantum Coherence and Computing held in Napoli, Italy, in June 2000. This workshop gathered a number of experts from the major Universities and Research Institutions of several countries. The choice of the location, which recognizes the role and the traditions of Naples in this field, guaranteed the participants a stimulating atmosphere. The aim of the workshop has been to report on the recent theoretical and experimental results on the macroscopic quantum coherence of macroscopic systems. Particular attention was devoted to Josephson devices. The correlation with other atomic and molecular systems, exhibiting a macroscopic quantum behaviour, was also discussed. The seminars provided both historical overview and recent theoretical ground on the topic, as well as information on new experimental results relative to the quantum computing area. The first workshop on this topic, held in Napoli in 1998, has been ennobled by important reports on observations of Macroscopic Quantum Coherence in mesoscopic systems. The current workshop proposed, among many stimulating results, the first observations of Macroscopic Quantum Coherence between macroscopically distinct fluxoid states in rf SQUIDs, 20 years after the Leggett's proposal to experimentally test the quantum behavior of macroscopic systems. Reports on observations of quantum behaviour in molecular and magnetic systems, small Josephson devices, quantum dots have also been particularly stimulating in view of the realization of several possible q-bits.
 

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Indice

Macroscopic Quantum Coherence and Decoherence in SQUIDs
1
Macroscopic Quantum Coherence in an RfSQUID
7
QuantumState Interference in a CooperPair Box
17
Macroscopic Quantum Superposition in a ThreeJosephsonJunction
25
Fate of
35
Macroscopic Quantum Phenomena in Atomic BoseEinstein
41
PhaseCoherent Electronic Transport in a MultiWall Carbon
51
Macroscopic Quantum Phenomena in Underdamped Josephson
61
Interaction of Vortices with Non
245
Theory Practice and Future Prospects
253
An Analysis of the Quantum
261
Adiabatic Inversion in the SQUID Macroscopic Coherence
271
Quantum Computing with Separable States?
285
Spintronics and Quantum Computing with Quantum Dots
293
Transport through Artificial Kondo Impurities
316
Compensation of the Spin of a Quantum Dot at Coulomb Blockade
325

Superconducting Devices to Test Macroscopic Quantum
73
In Situ
101
Superconducting Electrometer for Measuring the Single Cooper
111
Adiabatic Transport of Cooper Pairs in Arrays of Small Josephson
127
Entangled States in a Josephson Charge Qubit Coupled to
137
Nonlocality in Superconducting Microstructures
155
Characterisation of Cooper Pair Boxes for Quantum Bits
165
Noise Measurements of a Superconducting Single Electron
173
Quantum Coherence and Decoherence in Magnetic Nanostructures
183
MQT of Magnetic Particles
195
Abrupt Transition between ThermallyAssisted and Pure
207
Quantum Effects in the Dynamics of the Magnetization in Single
215
Quantum Coherence and Very Low Temperature Magnetic
225
Quantum Gates and Networks with Cavity QED Systems
235
MultiParticle Entanglement in Quantum Computers
341
A Unified Dynamical
351
1F Noise during Manipulation of Josephson Charge Qubits
359
NonMarkovian Dynamics in ContinuousWave Atom Lasers
367
TimeCorrelated Macroscopic Quantum Tunneling of Solitons
381
The NonPerturbative Quantum Behaviour of a SQUID Ring in
389
Noise Properties of the SET Transistor in the CoTunneling
399
Charge Fluctuations and Dephasing in Coulomb Coupled
409
The Measurement of Photon Number States Using Cavity QED
419
Abrupt Magnetoresistance Jumps in NiWire Systems
427
Spontaneous Generation of Flux in a Josephson Junction Loop
443
Soliton Quantum Bit
449
Index
459
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