Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Yuriy Makhlin"'
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-12 (2023)
Abstract We analyze propagation of quantum information along chiral Majorana edge states in two-dimensional topological materials. The use of edge states may facilitate the braiding operation, an important ingredient in topological quantum computatio
Externí odkaz:
https://doaj.org/article/1305420626ef4dd082269cb13f7af5ea
Autor:
Kirill Dubovitskii, Yuriy Makhlin
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-10 (2022)
Abstract In randomized benchmarking of quantum logical gates, partial twirling can be used for simpler implementation, better scaling, and higher accuracy and reliability. For instance, for two-qubit gates, single-qubit twirling is easier to realize
Externí odkaz:
https://doaj.org/article/42b2b309e9304cf1b6e82375fb66b9ac
Publikováno v:
Scientific Reports
Scientific reports, 9 (1), Article number: 2598
Scientific Reports, Vol 9, Iss 1, Pp 1-8 (2019)
Scientific reports, 9 (1), Article number: 2598
Scientific Reports, Vol 9, Iss 1, Pp 1-8 (2019)
The celebrated Jordan–Wigner transformation provides an efficient mapping between spin chains and fermionic systems in one dimension. Here we extend this spin–fermion mapping to arbitrary tree structures, which enables mapping between fermionic a
Publikováno v:
Physical Review B, 96(19)
We analyse the control of Majorana zero-energy states by mapping the fermionic system onto a chain of Ising spins. Although the topological protection is lost for the Ising system, the mapping provides additional insight into the nature of the quantu
Publikováno v:
Physical Review B. 93
The Majorana representation for spin operators enables efficient application of field-theoretical methods for the analysis of spin dynamics. Moreover, a wide class of spin correlation functions can be reduced to Majorana correlations of the same orde
Publikováno v:
Chemical Physics. 296:315-324
Recent experiments with Josephson junctions have demonstrated long coherence times, a property crucial for their use in quantum information processing. Motivated by these experiments, we analyze the effect of the low-frequency noise with a singular p
Publikováno v:
Physica C: Superconductivity. 368:276-283
Josephson junction circuits can serve as building blocks of quantum computers. Here we discuss designs, which employ magnetic flux degrees of freedom to process quantum information. Elementary single- and two-qubit logic gates can be performed by vol
Publikováno v:
Physica C: Superconductivity. 352:113-119
Quantum measurements have to be performed in order to read out the final state of qubits in quantum computers. For a Josephson charge qubit [Phys. Rev. Lett. 79 (1997) 2371; Nature 386 (1999) 305] this can be accomplished by coupling a single-electro
Publikováno v:
Physica C: Superconductivity. 350:161-165
Various physical systems were proposed for quantum information processing. Among those nanoscale devices appear most promising for integration in electronic circuits and large-scale applications. We discuss Josephson junction circuits in two regimes
Publikováno v:
Scalable Quantum Computers: Paving the Way to Realization