Results 21 to 30 of about 7,760 (206)

Quantum dot spin cellular automata for realizing a quantum processor [PDF]

, 2013
We show how single quantum dots, each hosting a singlet–triplet qubit, can be placed in arrays to build a spin quantum cellular automaton. A fast (∼10 ns) deterministic coherent singlet–triplet filtering, as opposed to current incoherent tunneling/slow ...
A. Bayat, C. Creffield, J. Jefferson, M. Pepper, S. Bose   +4 more
semanticscholar   +1 more source

Storage Qubits and Their Potential Implementation Through a Semiconductor Double Quantum Dot [PDF]

, 2001
In the context of a semiconductor based implementation of a quantum computer the idea of a quantum storage bit is presented and a possible implementation using a double quantum dot structure is considered.
A. Shnirman, A.N. Korotkov, A.N. Korotkov, A.O. Caldeira, D. Sprinzak, D.P. DiVincenzo, D.P. DiVincenzo, E. Biolatti, E. Buks, Ehoud Pazy, Fausto Rossi, I.L. Aleiner, Irene D’Amico, K. Bergmann, L. Stodolsky, M. Elk, M.B. Mensky, Paolo Zanardi, S.A. Gurvitz, T.A. Laine, U. Hohenester, Y. Levinson   +21 more
core   +4 more sources

Fundamental 1:2 demultiplexer design in quantum-dot cellular automata nanotechnology

e-Prime: Advances in Electrical Engineering, Electronics and Energy
There are many issues with complementary metal oxide semiconductor (CMOS) technology in the ultra-nanoscale regime. A quantum-dot cellular automaton (QCA) is a promising innovation for crafting logic circuits in nanoscale dimensions.
Nandan Vaid, Vijay Kumar Sharma, Prashant Kumar   +2 more
doaj   +1 more source

Operation of Quantum Cellular Automaton cells with more than two electrons

, 1999
We present evidence that operation of QCA (Quantum Cellular Automaton) cells with four dots is possible with an occupancy of 4N+2 electrons per cell (N being an integer).
Girlanda, M., Governale, M., Iannaccone, G., Macucci, M.   +3 more
core   +1 more source

Implementation of Binary to Gray Code Converters in Quantum Dot Cellular Automata

, 2015
Quantum dot cellular automaton (QCA) are dominant nanotechnology which has been used extensively in digital circuits and systems. It is a promising alternative to complementary metal–oxide–semiconductor (CMOS) technology with many enticing features such ...
S. Islam, Md. Abdullah-Al-Shafi, A. Bahar   +2 more
semanticscholar   +1 more source

Investigation of possibility of high temperature quantum-dot cellular automata

, 2007
Quantum-dot cellular automaton at this moment works properly at very low temperature region. How to avoid or increase the low temperature limit is investigated.
G. Varga
semanticscholar   +2 more sources

Spin-1/2 particles moving on a 2D lattice with nearest-neighbor interactions can realize an autonomous quantum computer

, 2005
What is the simplest Hamiltonian which can implement quantum computation without requiring any control operations during the computation process? In a previous paper we have constructed a 10-local finite-range interaction among qubits on a 2D lattice ...
A. Childs, D. Aharonov, D. Cvetkovic, D. Janzing, Dominik Janzing, F. Chung, H. Araki, M. Biafore, M. Nielsen, N. Margolus, P. Benioff, R. Feynman, R. Raussendorf, W. Kaminsky   +13 more
core   +3 more sources

Novel Adder Circuits Based On Quantum-Dot Cellular Automata (QCA)

, 2014
Quantum-dot cellular automaton (QCA) is a novel nanotechnology that provides a very different computation platform than traditional CMOS, in which polarization of electrons indicates the digital information.
Firdous Ahmad, G. M. Bhat, Peer Zahoor Ahmad   +2 more
semanticscholar   +1 more source

An algorithm for simulating the Ising model on a type-II quantum computer

, 2004
Presented here is an algorithm for a type-II quantum computer which simulates the Ising model in one and two dimensions. It is equivalent to the Metropolis Monte-Carlo method and takes advantage of quantum superposition for random number generation. This
Barenco, Chandler, Creutz, Creutz, Herrmann, J.H. Cole, L.C.L. Hollenberg, Metropolis, Nielsen, Onsager, Ottavi, Pravia, Pravia, S. Prawer, Shor, Vahala, Vichniac, Yepez, Yepez, Yepez   +19 more
core   +2 more sources

Massively parallel computing on an organic molecular layer

, 2010
Current computers operate at enormous speeds of ~10^13 bits/s, but their principle of sequential logic operation has remained unchanged since the 1950s.
A Bandyopadhyay, A Bandyopadhyay, A Credi, A Hjelmfelt, A Imre, A Kirakosian, A Korobov, AJ Ruben, Anirban Bandyopadhyay, AO Orlov, AP Silva, AR Pease, C Dri, CS Lent, Daisuke Fujita, E Fredkin, F Cunha, F Jiménez Morales, Ferdinand Peper, H Qi, J Chen, JJ Hopfield, JP Crutchfeld, JV Neumann, L Onsagar, MA Nowak, R Jones, R Landauer, R Pati, Ranjit Pati, RJ Gaylord, S Wolfram, Satyajit Sahu, T Higuchi, T Müller, T Toffoli, Y Benenson   +36 more
core   +1 more source