Wallenberg Centre for Quantum Technology (WACQT)

Forskningsprojekt, 2018 – 2030

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Samarbetspartners

Finansiering

Relaterade styrkeområden och infrastruktur

Nanovetenskap och nanoteknik

Styrkeområden

Publikationer

Thermally driven quantum refrigerator autonomously resets a superconducting qubit

Optimizing the quantum stack: a machine learning approach

Sufficient Condition for Universal Quantum Computation Using Bosonic Circuits

Key issues review: useful autonomous quantum machines

Quasibound states in the continuum in photonic crystal based optomechanical microcavities

Loss and decoherence in superconducting circuits on silicon: Insights from electron spin resonance

Superconducting lumped-element travelling-wave parametric amplifiers

Mitigation of interfacial dielectric loss in aluminum-on-silicon superconducting qubits

Study of noise in virtual distillation circuits for quantum error mitigation

Development of high-coherence superconducting devices for quantum computing: Fabrication process development, materials analysis, and device characterization

Avoiding decoherence with giant atoms in a two-dimensional structured environment

Dissipative and dispersive cavity optomechanics with a frequency-dependent mirror

Correlated frequency noise in a multimode acoustic resonator

Construction of an Arbitrary Waveform Radar System

Parameter estimation from quantum-jump data using neural networks

Thickness dependence of the mechanical properties of piezoelectric high-Q<inf>m</inf> nanomechanical resonators made from aluminium nitride

Implementation of a coherent real-time noise radar system

Scaling of self-stimulated spin echoes

Universal control of a bosonic mode via drive-activated native cubic interactions

Nanomechanical Crystalline AlN Resonators with High Quality Factors for Quantum Optoelectromechanics

Applying quantum approximate optimization to the heterogeneous vehicle routing problem

Intermodulation spectroscopy and the nonlinear response of two-level systems in superconducting coplanar-waveguide resonators

Microwave Photon Generation and Entanglement for Distributed Quantum Computing

Modeling and Harmonic Balance Analysis of Superconducting Parametric Amplifiers for Qubit Readout: A Tutorial

Characterization of process-related interfacial dielectric loss in aluminum-on-silicon by resonator microwave measurements, materials analysis, and imaging

Quantum and classical metrology for noise radar

Resources in quantum computation for discrete and continuous-variable systems

Signal Crosstalk in a Flip-Chip Quantum Processor

Resource analysis of quantum algorithms for coarse-grained protein folding models

Tuning atom-field interaction via phase shaping

Optimizing Variational Quantum Algorithms with qBang: Efficiently Interweaving Metric and Momentum to Navigate Flat Energy Landscapes

Digital Homodyne and Heterodyne Detection for Stationary Bosonic Modes

Towards efficient quantum computing for quantum chemistry: reducing circuit complexity with transcorrelated and adaptive ansatz techniques

Toward Real Chemical Accuracy on Current Quantum Hardware Through the Transcorrelated Method

Dynamics of gate-controlled superconducting Dayem bridges

Peripheral circuits for ideal performance of a traveling-wave parametric amplifier

Motional-state analysis of a trapped ion by ultranarrowband composite pulses

Analog Information Decoding of Bosonic Quantum Low-Density Parity-Check Codes

Scaling Superconducting Quantum Processors: Coherence, Frequency Targeting and Crosstalk

Benchmarking and Metrology of Scaled Superconducting Quantum Processors

Unconventional saturation effects at intermediate drive in a lossy cavity coupled to few emitters

Reference-State Error Mitigation: A Strategy for High Accuracy Quantum Computation of Chemistry

The electron density: a fidelity witness for quantum computation

For a Fistful of Qubits: Computational Quantum Chemistry on Near-Term Quantum Computers

High-Q Trampoline Resonators from Strained Crystalline InGaP for Integrated Free-Space Optomechanics

Fast generation of Schrödinger cat states using a Kerr-tunable superconducting resonator

Transmon qubit readout fidelity at the threshold for quantum error correction without a quantum-limited amplifier

Microwave Gaussian quantum metrology

High-Gain Traveling-Wave Parametric Amplifier Based on Three-Wave Mixing

Reflection-enhanced gain in traveling-wave parametric amplifiers

Qubit readout and quantum sensing with pulses of quantum radiation

Three-wave mixing traveling-wave parametric amplifier with periodic variation of the circuit parameters

Quantum bath suppression in a superconducting circuit by immersion cooling

Toward Accurate Post-Born-Oppenheimer Molecular Simulations on Quantum Computers: An Adaptive Variational Eigensolver with Nuclear-Electronic Frozen Natural Orbitals

Multipartite Entanglement in a Microwave Frequency Comb

Single-Shot Measurements of Phonon Number States Using the Autler-Townes Effect

Resolving Fock states near the Kerr-free point of a superconducting resonator

Superconducting Microsphere Magnetically Levitated in an Anharmonic Potential with Integrated Magnetic Readout

Hybrid Quantum-Classical Heuristic to Solve Large-Scale Integer Linear Programs

Mitigation of frequency collisions in superconducting quantum processors

Machine learning for quantum information and computing

Vacuum provides quantum advantage to otherwise simulatable architectures

Low-Pass Filter With Ultrawide Stopband for Quantum Computing Applications

Giant emitters in a structured bath with non-Hermitian skin effect

Clamped and sideband-resolved silicon optomechanical crystals

Gaussian conversion protocol for heralded generation of generalized Gottesman-Kitaev-Preskill states

Gradient-Descent Quantum Process Tomography by Learning Kraus Operators

Accelerating variational quantum eigensolver convergence using parameter transfer

Making and identifying quantum resources

A quantum computing implementation of nuclearelectronic orbital (NEO) theory: Toward an exact pre-Born-Oppenheimer formulation of molecular quantum systems

Nonadiabatic Nuclear-Electron Dynamics: A Quantum Computing Approach

Complete Active Space Methods for NISQ Devices: The Importance of Canonical Orbital Optimization for Accuracy and Noise Resilience

Multimode character of quantum states released from a superconducting cavity

Interaction between giant atoms in a one-dimensional structured environment

The quantum approximate optimization algorithm: optimization problems and implementations

Quantum Computing for Airline Planning and Operations

Chiral quantum optics with giant atoms

The XYZ(2) hexagonal stabilizer code

Designing Kerr Interactions for Quantum Information Processing via Counterrotating Terms of Asymmetric Josephson-Junction Loops

Quantifying Qubit Magic Resource with Gottesman-Kitaev-Preskill Encoding

Giant Atoms in a Synthetic Frequency Dimension

Steady-State Heat Transport and Work With a Single Artificial Atom Coupled to a Waveguide: Emission Without External Driving

Engineering Symmetry-Selective Couplings of a Superconducting Artificial Molecule to Microwave Waveguides

Revealing higher-order light and matter energy exchanges using quantum trajectories in ultrastrong coupling

Universal Fidelity Reduction of Quantum Operations from Weak Dissipation

Error-rate-agnostic decoding of topological stabilizer codes

Performance of Teleportation-Based Error-Correction Circuits for Bosonic Codes with Noisy Measurements

Non-Markovian Steady States of a Driven Two-Level System

Squeezing and Multimode Entanglement of Surface Acoustic Wave Phonons

Measurement and control of a superconducting quantum processor with a fully integrated radio-frequency system on a chip

Benchmarking Advantage and D-Wave 2000Q quantum annealers with exact cover problems

On the nature of decoherence in quantum circuits: Revealing the structural motif of the surface radicals in α-Al<inf>2</inf>O<inf>3</inf>

Quantum-enhanced Doppler lidar

Robust Preparation of Wigner-Negative States with Optimized SNAP-Displacement Sequences

Deterministic Gaussian conversion protocols for non-Gaussian single-mode resources

Deterministic Loading of Microwaves onto an Artificial Atom Using a Time-Reversed Waveform

Deterministic one-way logic gates on a cloud quantum computer

Building blocks of a flip-chip integrated superconducting quantum processor

A chip-based superconducting magnetic trap for levitating superconducting microparticles

Qubit-compatible substrates with superconducting through-silicon vias

Organic charged polaritons in the ultrastrong coupling regime

Building a Bosonic Microwave Qubit

Tunable Chiral Bound States with Giant Atoms

Simplified Josephson-junction fabrication process for reproducibly high-performance superconducting qubits

Ultimate quantum limit for amplification: A single atom in front of a mirror

Transmon in a semi-infinite high-impedance transmission line: Appearance of cavity modes and Rabi oscillations

Propagating Wigner-Negative States Generated from the Steady-State Emission of a Superconducting Qubit

Classical simulation of Gaussian quantum circuits with non-Gaussian input states

Micromotion minimization using Ramsey interferometry

Improved content mastery and written communication through a lab-report assignment with peer review: an example from a quantum engineering course

Wigner negativity in the steady-state output of a Kerr parametric oscillator

Engineering the level structure of a giant artificial atom in waveguide quantum electrodynamics

Gaussian Conversion Protocols for Cubic Phase State Generation

Fast Multiqubit Gates through Simultaneous Two-Qubit Gates

Stability of superconducting resonators: Motional narrowing and the role of Landau-Zener driving of two-level defects

Classification and reconstruction of optical quantum states with deep neural networks ()

Qubit motion as a microscopic model for the dynamical Casimir effect

High quality three-dimensional aluminum microwave cavities

Efficient simulatability of continuous-variable circuits with large Wigner negativity

Oscillating bound states for a giant atom

Tripartite Genuine Non-Gaussian Entanglement in Three-Mode Spontaneous Parametric Down-Conversion

Universal Gate Set for Continuous-Variable Quantum Computation with Microwave Circuits

Quantum acoustics with superconducting circuits

Simulating ultrastrong-coupling processes breaking parity conservation in Jaynes-Cummings systems

Superconducting Qubits: Current State of Play

Primary Thermometry of Propagating Microwaves in the Quantum Regime

Chip-based superconducting traps for levitation of micrometer-sized particles in the Meissner state

Applying the Quantum Approximate Optimization Algorithm to the Tail-Assignment Problem

Deep Q-learning decoder for depolarizing noise on the toric code

Can Biological Quantum Networks Solve NP-Hard Problems?

A quantum engineer's guide to superconducting qubits

Characterization and modeling of acousto-optic signal strengths in highly scattering media

Mer information

Projektets webbplats

https://wacqt.se

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