High-entanglement capabilities for variational quantum algorithms: the Poisson equation case
Sign Up to like & getrecommendations! Published in 2024 at "Quantum Information Processing"
DOI: 10.1007/s11128-025-04846-y
Abstract: The discretized Poisson equation matrix (DPEM) in 1D has been shown to require an exponentially large number of terms when decomposed in the Pauli basis when solving numerical linear algebra problems on a quantum computer.… read more here.
Keywords: quantum algorithms; variational quantum; quantum; poisson equation ... See more keywords
Enhancing the performance of variational quantum classifiers with hybrid autoencoders
Sign Up to like & getrecommendations! Published in 2024 at "Quantum Information Processing"
DOI: 10.1007/s11128-025-04864-w
Abstract: Variational quantum circuits (VQC) lie at the forefront of quantum machine learning research. Still, the use of quantum networks for real data processing remains challenging as the number of available qubits cannot accommodate a large… read more here.
Keywords: dimensionality; enhancing performance; variational quantum; performance variational ... See more keywords
Variational quantum eigensolver with linear depth problem-inspired ansatz for solving portfolio optimization in finance
Sign Up to like & getrecommendations! Published in 2024 at "Science China Information Sciences"
DOI: 10.1007/s11432-024-4185-1
Abstract: Great efforts have been dedicated in recent years to exploring practical applications for noisy intermediate-scale quantum (NISQ) computers, which is a fundamental and challenging problem in quantum computing. As one of the most promising methods,… read more here.
Keywords: problem; variational quantum; finance; quantum ... See more keywords
Reducing Circuit Depth in Adaptive Variational Quantum Algorithms via Effective Hamiltonian Theories.
Sign Up to like & getrecommendations! Published in 2022 at "Journal of chemical theory and computation"
DOI: 10.1021/acs.jctc.2c00341
Abstract: The electronic structure is an anticipated application for quantum computers. However, quantum circuits required to represent the highly entangled electronic wave functions within the variational quantum eigensolver (VQE) framework are far beyond the capacity of… read more here.
Keywords: algorithms; circuit depth; quantum; variational quantum ... See more keywords
Amplitude Reordering Accelerates the Adaptive Variational Quantum Eigensolver Algorithms.
Sign Up to like & getrecommendations! Published in 2022 at "Journal of chemical theory and computation"
DOI: 10.1021/acs.jctc.2c00403
Abstract: The variational quantum eigensolver (VQE) algorithm can simulate the chemical systems such as molecules in the noisy-intermediate-scale quantum devices and shows promising applications in quantum chemistry simulations. The accuracy and computational cost of the VQE… read more here.
Keywords: adapt vqe; vqe algorithm; quantum eigensolver; quantum ... See more keywords
Computing the Many-Body Green's Function with Adaptive Variational Quantum Dynamics.
Sign Up to like & getrecommendations! Published in 2023 at "Journal of chemical theory and computation"
DOI: 10.1021/acs.jctc.3c00150
Abstract: We present a method to compute the many-body real-time Green's function using an adaptive variational quantum dynamics simulation approach. The real-time Green's function involves the time evolution of a quantum state with one additional electron… read more here.
Keywords: many body; function; green function; variational quantum ... See more keywords
Physically Motivated Improvements of Variational Quantum Eigensolvers
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Chemical Theory and Computation"
DOI: 10.1021/acs.jctc.4c00329
Abstract: The adaptive derivative-assembled pseudo-Trotter variational quantum eigensolver (ADAPT-VQE) has emerged as a pivotal promising approach for electronic structure challenges in quantum chemistry with noisy quantum devices. Nevertheless, to surmount existing technological constraints, this study endeavors… read more here.
Keywords: chemistry; adapt vqe; variational quantum; physically motivated ... See more keywords
Calculation of Core-Excited and Core-Ionized States Using Variational Quantum Deflation Method and Applications to Photocatalyst Modeling
Sign Up to like & getrecommendations! Published in 2022 at "ACS Omega"
DOI: 10.1021/acsomega.2c01053
Abstract: The possibility of performing quantum chemical calculations using quantum computers has attracted much interest. In this regard, variational quantum deflation (VQD) is a quantum-classical hybrid algorithm for the calculation of excited states with noisy intermediate-scale… read more here.
Keywords: core ionized; method; calculation; variational quantum ... See more keywords
Variational quantum algorithm with information sharing
Sign Up to like & getrecommendations! Published in 2021 at "npj Quantum Information"
DOI: 10.1038/s41534-021-00452-9
Abstract: We introduce an optimisation method for variational quantum algorithms and experimentally demonstrate a 100-fold improvement in efficiency compared to naive implementations. The effectiveness of our approach is shown by obtaining multi-dimensional energy surfaces for small… read more here.
Keywords: algorithm information; quantum; information; quantum algorithm ... See more keywords
Variational quantum generative modeling by sampling expectation values of tunable observables
Sign Up to like & getrecommendations! Published in 2025 at "Npj Quantum Information"
DOI: 10.1038/s41534-025-01121-x
Abstract: Expectation Value Samplers (EVSs) are quantum generative models that can learn high-dimensional continuous distributions by measuring the expectation values of parameterized quantum circuits. However, these models can demand impractical quantum resources for good performance. We… read more here.
Keywords: expectation values; variational quantum; quantum generative; generative modeling ... See more keywords
Noise-assisted variational quantum thermalization
Sign Up to like & getrecommendations! Published in 2022 at "Scientific Reports"
DOI: 10.1038/s41598-022-07296-z
Abstract: Preparing thermal states on a quantum computer can have a variety of applications, from simulating many-body quantum systems to training machine learning models. Variational circuits have been proposed for this task on near-term quantum computers,… read more here.
Keywords: thermal state; quantum; noise assisted; variational quantum ... See more keywords