Results 21 to 30 of about 120,004 (268)
, 2017 An ideal system of n qubits has 2^n dimensions. This exponential grants power, but also hinders characterizing the system's state and dynamics. We study a new problem: the qubits in a physical system might not be independent. They can "overlap," in the sense that an operation on one qubit slightly affects the others.
Rui Chao +3 more
openaire +6 more sources
Resonator–zero-qubit architecture for superconducting qubits [PDF]
Physical Review A, 2012 We analyze the performance of the Resonator/zero-Qubit (RezQu) architecture in which the qubits are complemented with memory resonators and coupled via a resonator bus. Separating the stored information from the rest of the processing circuit by at least two coupling steps and the zero qubit state results in a significant increase of the ON/OFF ratio ...
Galiautdinov, Andrei +2 more
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Two-Qubit Gates for Resonant Exchange Qubits [PDF]
Physical Review Letters, 2013 A new approach to single-qubit operations using exchange interactions of single electrons in gate-defined quantum dots has recently been demonstrated: the resonant exchange qubit. We show that two-qubit operations, specifically the CPHASE gate, can be performed between resonant exchange qubits very straightforwardly, using a single exchange pulse. This
Doherty, Andrew C., Wardrop, Matthew P.
openaire +3 more sources
Advances in Josephson Junction Materials and Processes Toward Practical Quantum Computing. [PDF]
Adv Sci (Weinh)Emerging materials for quantum computing, including crystalline materials, two‐dimensional van der Waals materials, two‐dimensional electron gas systems, ferromagnets, and unconventional (e.g., d‐wave) superconductors, offer opportunities to engineer next‐generation Josephson junctions.
Kim H +11 more
europepmc +2 more sources
SoK: Benchmarking the Performance of a Quantum Computer
Entropy, 2022 The quantum computer has been claimed to show more quantum advantage than the classical computer in solving some specific problems. Many companies and research institutes try to develop quantum computers with different physical implementations. Currently,
Junchao Wang, Guoping Guo, Zheng Shan
doaj +1 more source
Phonon-induced decoherence of a charge quadrupole qubit
New Journal of Physics, 2018 Many quantum dot qubits operate in regimes where the energy splittings between qubit states are large and phonons can be the dominant source of decoherence.
Viktoriia Kornich +3 more
doaj +1 more source
Quantum Logic Locking for Security
J, 2023 Having access to a unique quantum circuit that one wants to protect against use by others is a very likely scenario in industrial computing. However, currently, users rely on classical computer security schemes, which have known shortcomings.
Rasit Onur Topaloglu
doaj +1 more source
Producing Cluster States in Charge Qubits and Flux Qubits [PDF]
Physical Review Letters, 2006 We propose a method to efficiently generate cluster states in charge qubits, both semiconducting and superconducting, as well as flux qubits. We show that highly-entangled cluster states can be realized by a `one-touch' entanglement operation by tuning gate bias voltages for charge qubits.
Tanamoto, Tetsufumi +4 more
openaire +4 more sources
Communications BiologyTargeting RNA with small molecules represents a promising yet relatively unexplored avenue for the design of new drugs. Nevertheless, challenges arise from the lack of computational models and techniques able to accurately model RNA systems, and predict ...
Narjes Ansari +8 more
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Quantum state estimation when qubits are lost: a no-data-left-behind approach
New Journal of Physics, 2017 We present an approach to Bayesian mean estimation of quantum states using hyperspherical parametrization and an experiment-specific likelihood which allows utilization of all available data, even when qubits are lost.
Brian P Williams, Pavel Lougovski
doaj +1 more source