Results 141 to 150 of about 2,092,913 (379)

Quantum gates by coupled asymmetric quantum dots and controlled-NOT-gate operation [PDF]

Physical Review A, 2000
A quantum computer based on an asymmetric coupled dot system has been proposed and shown to operate as the controlled-NOT-gate. The basic idea is (1) the electron is localized in one of the asymmetric coupled dots. (2)The electron transfer takes place from one dot to the other when the energy-levels of the coupled dots are set close.
openaire   +2 more sources

Universal quantum Controlled-NOT gate [PDF]

The European Physical Journal D, 2010
An investigation of an optimal universal unitary Controlled-NOT gate that performs a specific operation on two unknown states of qubits taken from a great circle of the Bloch sphere is presented. The deep analogy between the optimal universal C-NOT gate and the `equatorial' quantum cloning machine (QCM) is shown.
Stephan Fritzsche, Michael Siomau
openaire   +3 more sources

Gated PN Junction in Ambipolar MoS2 for Superior Self‐Powered Photodetection

Advanced Functional Materials, EarlyView.
A high‐quality gated pn junction based on ambipolar molybdenum disulfide (MoS2) is demonstrated by employing a partial‐gate structure and a Pt bottom contact that forms a semi‐van der Waals interface, facilitating efficient hole injection into the channel.
Jaeha Hwang, Jungi Song, Hanbyeol Jang, Yongwook Seok, Jiwi Park, Suyeon Lee, Jun‐Hyeok Choi, Gyeongsu Lee, Kenji Watanabe, Takashi Taniguchi, Byoung Hun Lee, Kyoungsik Yu, Kayoung Lee   +12 more
wiley   +1 more source

Modularization of multi-qubit controlled phase gate and its NMR implementation

, 2004
Quantum circuit network is a set of circuits that implements a certain computation task. Being at the center of the quantum circuit network, the multi-qubit controlled phase shift is one of the most important quantum gates.
Barenco A, Biham E, Cleve R, Deutsch D, Deutsch D, Fang F-M, Gui Lu Long, Jingfu Zhang, Jones J A, Knill E, Long G L, Maruyama K, Nielsen M A, Paz J P, Ro?ko M, Shor P W, Vandersypen L M K Chuang I L, Wenzhang Liu, Yu Y-F, Zhiheng Lu, Zhiwei Deng   +20 more
core   +1 more source

Electrically Binary and Ternary Convertible CMOS Inverter and Logic Gate Using Complementary Field‐Effect Transistors Based on Vertically Stacked MoS2/WSe2 n‐/p‐ Field‐Effect Transistors

Advanced Functional Materials, EarlyView.
In this work, a reconfigurable T‐CMOS inverter based on vertically stacked MoS2 and WSe2 MOSFETs with a gate‐tunable MoS2 resistor, enabling stable ternary logic, is demonstrated. The T‐CMOS inverter supports electrical switching between ternary and binary modes and is further extended to implement ternary NAND (NMIN) and NOR (NMAX) logic gates ...
Changwook Lee, Dongyoung Kim, Eunyeong Yang, Jiwon Ma, Kibum Kang, Jiwon Chang   +5 more
wiley   +1 more source

Large‐Scale On‐Chip Integration of Gate‐Voltage Addressable Hybrid Superconductor–Semiconductor Quantum Wells Field Effect Nano‐Switch Arrays

Advanced Electronic Materials
Stable, reproducible, scalable, addressable, and controllable hybrid superconductor–semiconductor (S–Sm) junctions and switches are key circuit elements and building blocks of gate‐based quantum processors.
Kaveh Delfanazari, Jiahui Li, Pengcheng Ma, Reuben K. Puddy, Teng Yi, Yusheng Xiong, Ian Farrer, Sachio Komori, Jason W. A. Robinson, David A. Ritchie, Michael J. Kelly, Hannah J. Joyce, Charles G. Smith   +12 more
doaj   +1 more source

Simple implementation of high fidelity controlled-iswap gates and quantum circuit exponentiation of non-Hermitian gates

Physical Review Research, 2020
The iswap gate is an entangling swapping gate where the qubits obtain a phase of i if the state of the qubits is swapped. Here we present a simple implementation of the controlled-iswap gate. The gate can be implemented with several controls and works by
S. E. Rasmussen, N. T. Zinner
doaj   +1 more source

Magnetic‐Field Tuning of the Spin Dynamics in the Quasi‐2D Van der Waals Antiferromagnet CuCrP2S6

Advanced Functional Materials, EarlyView.
This study reveals 2D character of the spin dynamics in CuCrP2S6, as well as complex field dependence of collective excitations in the antiferromagnetically ordered state. Their remarkable tuning from the antiferromagnetic to the ferromagnetic type with magnetic field, together with the non‐degeneracy of the magnon gaps favorable for the induction of ...
Joyal John Abraham, Yaqian Guo, Yuliia Shemerliuk, Sebastian Selter, Saicharan Aswartham, Kranthi Kumar Bestha, Laura T. Corredor, Anja U. B. Wolter, Olga Kataeva, Luka Rogić, Noah Somun, Damjan Pelc, Oleg Janson, Jeroen van den Brink, Bernd Büchner, Vladislav Kataev, Alexey Alfonsov   +16 more
wiley   +1 more source

Fast, Robust, and Laser-Free Universal Entangling Gates for Trapped-Ion Quantum Computing

Physical Review X
A novel two-qubit entangling gate for trapped-ion quantum processors is proposed theoretically and demonstrated experimentally. During the gate, double-dressed quantum states are created by applying a phase-modulated continuous driving field.
Markus Nünnerich, Daniel Cohen, Patrick Barthel, Patrick H. Huber, Dorna Niroomand, Alex Retzker, Christof Wunderlich   +6 more
doaj   +1 more source

Dispersive Readout of a Few-Electron Double Quantum Dot with Fast rf Gate-Sensors

, 2012
We report the dispersive charge-state readout of a double quantum dot in the few-electron regime using the in situ gate electrodes as sensitive detectors.
Colless, J. I., Doherty, A. C., Gossard, A. C., Hornibrook, J. M., Lu, H., Mahoney, A. C., Reilly, D. J.   +6 more
core   +1 more source