Quantum 5, 597 (2021). https://doi.org/10.22331/q-2021-12-06-597 We show a superpolynomial oracle separation between the power of adiabatic quantum computation with no sign problem and the power of classical computation. Click to rate this post! [Total: 0 […]
Quantum 5, 596 (2021). https://doi.org/10.22331/q-2021-12-02-596 Variational quantum eigensolvers (VQEs) are a promising class of quantum algorithms for preparing approximate ground states in near-term quantum devices. Minimizing the error in such an approximation requires designing ansatzes […]
Quantum 5, 595 (2021). https://doi.org/10.22331/q-2021-12-02-595 In order to build a large scale quantum computer, one must be able to correct errors extremely fast. We design a fast decoding algorithm for topological codes to correct for […]
Quantum 5, 594 (2021). https://doi.org/10.22331/q-2021-11-29-594 Spontaneous collapse models and Bohmian mechanics are two different solutions to the measurement problem plaguing orthodox quantum mechanics. They have, a priori nothing in common. At a formal level, collapse […]
Quantum 5, 593 (2021). https://doi.org/10.22331/q-2021-11-29-593 The construction of Bell inequalities based on Platonic and Archimedean solids (Quantum 4 (2020), 293) is generalized to the case of orbits generated by the action of some finite groups. […]
Quantum 5, 592 (2021). https://doi.org/10.22331/q-2021-11-26-592 Achieving near-term quantum advantage will require accurate estimation of quantum observables despite significant hardware noise. For this purpose, we propose a novel, scalable error-mitigation method that applies to gate-based quantum […]
Quantum 5, 591 (2021). https://doi.org/10.22331/q-2021-11-25-591 We investigate the interplay between Aharonov-Bohm (AB) caging and topological protection in a family of quasi-one-dimensional topological insulators, which we term CSSH ladders. Hybrids of the Creutz ladder and the […]
Quantum 5, 590 (2021). https://doi.org/10.22331/q-2021-11-25-590 Quantum dynamics of driven open systems should be compatible with both quantum mechanic and thermodynamic principles. By formulating the thermodynamic principles in terms of a set of postulates we obtain […]
Quantum 5, 589 (2021). https://doi.org/10.22331/q-2021-11-25-589 We consider the entanglement marginal problem, which consists of deciding whether a number of reduced density matrices are compatible with an overall separable quantum state. To tackle this problem, we […]
Quantum 5, 588 (2021). https://doi.org/10.22331/q-2021-11-25-588 Gleason-type theorems for quantum theory allow one to recover the quantum state space by assuming that (i) states consistently assign probabilities to measurement outcomes and that (ii) there is a […]
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