Results 21 to 30 of about 2,602,800 (301)

Pulse-Engineered Controlled-V Gate and Its Applications on Superconducting Quantum Device

open access: yesIEEE Transactions on Quantum Engineering, 2022
In this article, we demonstrate that, by employing the OpenPulse design kit for IBM superconducting quantum devices, the controlled-V gate (cv gate) can be implemented in about half the gate time to the controlled-X gate (cx or cnot gate) and ...
Takahiko Satoh   +3 more
doaj   +1 more source

Quantum computing

open access: yesElectronic Markets, 2022
AbstractQuantum computing promises to be the next disruptive technology, with numerous possible applications and implications for organizations and markets. Quantum computers exploit principles of quantum mechanics, such as superposition and entanglement, to represent data and perform operations on them.
Roman Rietsche   +5 more
openaire   +3 more sources

Exploring quantum many-body systems from the viewpoints of quantum computing and spectroscopy [PDF]

open access: yes, 2023
Understanding quantum many-body behaviours such as exotic phases and spectroscopic properties in quantum materials and molecular systems is a long-standing problem of both fundamental and practical interest in quantum physics. This understanding provides
Sun, Jinzhao
core   +1 more source

Applications of quantum computing for investigations of electronic transitions in phenylsulfonyl-carbazole TADF emitters

open access: yesnpj Computational Materials, 2021
A quantum chemistry study of the first singlet (S 1) and triplet (T 1) excited states of phenylsulfonyl-carbazole compounds, proposed as useful thermally activated delayed fluorescence (TADF) emitters for organic light emitting diode (OLED) applications,
Qi Gao   +9 more
doaj   +1 more source

F-Divergences and Cost Function Locality in Generative Modelling with Quantum Circuits

open access: yesEntropy, 2021
Generative modelling is an important unsupervised task in machine learning. In this work, we study a hybrid quantum-classical approach to this task, based on the use of a quantum circuit born machine. In particular, we consider training a quantum circuit
Chiara Leadbeater   +3 more
doaj   +1 more source

SU(2) hadrons on a quantum computer via a variational approach

open access: yesNature Communications, 2021
Quantum simulations of lattice gauge theories are in principle scalable, but their extension to dynamically coupled matter has proven difficult. In this work, the authors use a variational quantum eigensolver to simulate a non-Abelian LGT including the ...
Yasar Y. Atas   +5 more
doaj   +1 more source

Measurement-based quantum computing with a spin ensemble coupled to a stripline cavity [PDF]

open access: yes, 2012
Recently, a new form of quantum memory was proposed. The storage medium is an ensemble of electron spins, coupled to a stripline cavity and an ancillary readout system.
Benjamin, Simon C.   +9 more
core   +1 more source

Demonstration of long-range correlations via susceptibility measurements in a one-dimensional superconducting Josephson spin chain

open access: yesnpj Quantum Information, 2022
Spin chains have long been considered an effective medium for long-range interactions, entanglement generation, and quantum state transfer. In this work, we explore the properties of a spin chain implemented with superconducting flux circuits, designed ...
D. M. Tennant   +22 more
doaj   +1 more source

Quantum computing for quantum tunneling [PDF]

open access: yesPhysical Review D, 2021
We demonstrate how quantum field theory problems can be embedded on quantum annealers. The general method we use is a discretisation of the field theory problem into a general Ising model, with the continuous field values being encoded into Ising spin chains.
Steven Abel   +2 more
openaire   +4 more sources

Laser annealing heals radiation damage in avalanche photodiodes

open access: yesEPJ Quantum Technology, 2017
Avalanche photodiodes (APDs) are a practical option for space-based quantum communications requiring single-photon detection. However, radiation damage to APDs significantly increases their dark count rates and thus reduces their useful lifetimes in ...
Jin Gyu Lim   +5 more
doaj   +1 more source

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