Quantum logical elements for quantum computer based on nanocrystalline silicon

2004 ◽  
Author(s):  
Dmitri E. Milovzorov
Keyword(s):  
Quantum Computer ◽  
Nanocrystalline Silicon ◽  
Computer Based

scholarly journals A quantum computer based on recombination processes in microelectronic devices

2005 ◽  
Vol 10 ◽  
pp. 85-88
Author(s):  
K Theodoropoulos ◽  
D Ntalaperas ◽  
I Petras ◽  
N Konofaos
Keyword(s):  
Quantum Computer ◽  
Microelectronic Devices ◽  
Recombination Processes ◽  
Computer Based

D-Wave and predecessors: From simulated to quantum annealing

2014 ◽  
Vol 12 (03) ◽  
pp. 1430002 ◽  
Author(s):  
Eliahu Cohen ◽  
Boaz Tamir
Keyword(s):  
Genetic Algorithm ◽  
Image Processing ◽  
Large Scale ◽  
Quantum Computer ◽  
Research Area ◽  
Hill Climbing ◽  
Quantum Annealing ◽  
Challenging Research ◽  
Computer Based ◽  
D Wave

On May 2011, D-Wave Systems Inc. announced "D-Wave One", as "the world's first commercially available quantum computer". No wonder this adiabatic quantum computer based on 128-qubit chip-set provoked an immediate controversy. Over the last 40 years, quantum computation has been a very promising yet challenging research area, facing major difficulties producing a large scale quantum computer. Today, after Google has purchased "D-Wave Two" containing 512 qubits, criticism has only increased. In this work, we examine the theory underlying the D-Wave, seeking to shed some light on this intriguing quantum computer. Starting from classical algorithms such as Metropolis algorithm, genetic algorithm (GA), hill climbing and simulated annealing, we continue to adiabatic computation and quantum annealing towards better understanding of the D-Wave mechanism. Finally, we outline some applications within the fields of information and image processing. In addition, we suggest a few related theoretical ideas and hypotheses.

scholarly journals MINIMIZATION OF NONRESONANT EFFECTS IN A SCALABLE ISING SPIN QUANTUM COMPUTER

2004 ◽  
Vol 02 (03) ◽  
pp. 379-392 ◽  
Author(s):  
G. P. BERMAN ◽  
D. I. KAMENEV ◽  
V. I. TSIFRINOVICH
Keyword(s):  
Magnetic Field ◽  
External Magnetic Field ◽  
Quantum Computer ◽  
One Dimensional ◽  
Ising Spin ◽  
Spin Quantum ◽  
Computer Based ◽  
Frequency Offsets ◽  
Optimal Values ◽  
Large Frequency

The errors caused by the transitions with large frequency offsets (nonresonant transitions) are calculated analytically for a scalable solid-state quantum computer based on a one-dimensional spin chain with Ising interactions between neighboring spins. Selective excitations of the spins are enabled by a uniform gradient of the external magnetic field. We calculate the probabilities of all unwanted nonresonant transitions associated with the flip of each spin with nonresonant frequency and with flips of two spins: one with resonant and one with nonresonant frequencies. It is shown that these errors oscillate with changing gradient of the external magnetic field. Choosing the optimal values of this gradient allows us to decrease these errors by 50%.

Element base of quantum informatics I. Qubits of a quantum computer based on single atoms in optical traps

2017 ◽  
Vol 46 (2) ◽  
pp. 109-120 ◽  
Author(s):  
I. I. Ryabtsev ◽  
I. I. Beterov ◽  
E. A. Yakshina ◽  
D. B. Tretyakov ◽  
V. M. Entin ◽  
...  
Keyword(s):  
Quantum Computer ◽  
Optical Traps ◽  
Single Atoms ◽  
Quantum Informatics ◽  
Computer Based ◽  
Element Base

scholarly journals Scalable solid-state quantum computer based on quantum dot pillar structures

2000 ◽  
Vol 61 (11) ◽  
pp. 7526-7535 ◽  
Author(s):  
G. D. Sanders ◽  
K. W. Kim ◽  
W. C. Holton
Keyword(s):  
Solid State ◽  
Quantum Dot ◽  
Quantum Computer ◽  
Computer Based
Sign in / Sign up

Export Citation Format

Share Document