Results 31 to 40 of about 1,655,666 (239)
, 1997 The problem of finding the quantum theory of the gravitational field, and thus understanding what is quantum spacetime, is still open. One of the most active of the current approaches is loop quantum gravity. Loop quantum gravity is a mathematically well-
A Ashtekar +172 more
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Erasure conversion for fault-tolerant quantum computing in alkaline earth Rydberg atom arrays [PDF]
Nature Communications, 2022 Executing quantum algorithms on error-corrected logical qubits is a critical step for scalable quantum computing, but the requisite numbers of qubits and physical error rates are demanding for current experimental hardware.
Yue Wu +3 more
semanticscholar +1 more source
A “garden of forking paths” – The quantum mechanics of histories of events
Nuclear Physics B, 2016 This is a survey of a novel approach, called “ETH approach”, to the quantum theory of events happening in isolated physical systems and to the effective time evolution of states of systems featuring events.
Philippe Blanchard +2 more
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A variational eigenvalue solver on a photonic quantum processor [PDF]
Nature Communications, 2013 Quantum computers promise to efficiently solve important problems that are intractable on a conventional computer. For quantum systems, where the physical dimension grows exponentially, finding the eigenvalues of certain operators is one such intractable
A. Peruzzo +7 more
semanticscholar +1 more source
Operational applications of the diamond norm and related measures in quantifying the non-physicality of quantum maps [PDF]
Quantum, 2021 Although quantum channels underlie the dynamics of quantum states, maps which are not physical channels — that is, not completely positive — can often be encountered in settings such as entanglement detection, non-Markovian quantum dynamics, or error ...
Bartosz Regula, Ryuji Takagi, Mile Gu
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Quantum Machine Learning in Feature Hilbert Spaces. [PDF]
Physical Review Letters, 2018 A basic idea of quantum computing is surprisingly similar to that of kernel methods in machine learning, namely, to efficiently perform computations in an intractably large Hilbert space.
M. Schuld, N. Killoran
semanticscholar +1 more source
Enabling multi-programming mechanism for quantum computing in the NISQ era [PDF]
Quantum, 2021 NISQ devices have several physical limitations and unavoidable noisy quantum operations, and only small circuits can be executed on a quantum machine to get reliable results. This leads to the quantum hardware under-utilization issue.
Siyuan Niu, A. Todri
semanticscholar +1 more source
Quantum physics and biology: the local wavefunction approach
Journal of Physics: Conference Series, 2023 Abstract Is there a single linearly evolving Wave Function of the Universe that is able to lead to all the nonlinearities we see around us? This proposal seems a priori highly implausible. I claim that instead, in the real Universe, generically only local wave functions exist.
openaire +2 more sources
Quantum-centric computation of molecular excited states with extended sample-based quantum diagonalization [PDF]
Quantum Science and TechnologyThe simulation of molecular electronic structure is an important application of quantum devices. Recently, it has been shown that quantum devices can be effectively combined with classical supercomputing centers in the context of the sample-based quantum
Stefano Barison +2 more
semanticscholar +1 more source
Scientific Reports, 2023 We investigate the dynamics of non-classical correlations and quantum coherence in open quantum systems by employing metrics like local quantum Fisher information, local quantum uncertainty, and quantum Jensen-Shannon divergence.
Yassine Dakir +4 more
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