Variational quantum algorithms (VQAs) were once believed to be the fastest route to demonstrating practical quantum advantage. VQAs use a parameterized quantum circuit to perform a machine-learning ta...

We show that if two d-dimensional observables are picked at random, the set of classical states of the resulting KD distribution is a minimal polytope of dimension 2(d−1).

Personal website of Christopher K. Long

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Watch: Fields Medalist Terence Tao on Artificial Intelligence and Why We Do Math on Simons Foundation

A central problem in quantum information is determining quantum-classical boundaries. In the quasiprobability framework, a state is called classical if it is represented by a quasiprobability distribu...

Useful chemistry calculations on near-term quantum processors are hindered by current algorithmic runtimes. We develop a methodology to significantly reduce these runtimes. Typically, variational quan...

A central problem in quantum information is determining quantum-classical boundaries. In the quasiprobability framework, a state is called classical if it is represented by a quasiprobability distribu...

Girton College, University of Cambridge, is hosting a conference to mark the 100-year anniversary of the discovery of modern quantum mechanics.

A positron is equivalent to an electron traveling backward through time. Casting transmon superconducting qubits as akin to electrons, we simulate a positron with a transmon subject to particular reso...

I was reading the comments on this answer where several users claimed that Strunk and White’s The Elements of Style was “misinformed, hypocritical, and wrong” and “flat-out wrong or totally mislead...

I was reading the comments on this answer where several users claimed that Strunk and White’s The Elements of Style was “misinformed, hypocritical, and wrong” and “flat-out wrong or totally mislead...

Read "The Elements of Style, Fourth Edition" by William Strunk Jr available from Rakuten Kobo. 'The Elements of Style' (1918), by William Strunk, Jr., is an American English writing style guide. It is...

Tutorial for syncing GitHub repos to GitLab with a GitLab CI triggered by GitHub Webhook. - Christopher-K-Long/GitLab-Repo-Sync

npj Quantum Information - Quantifying the effect of gate errors on variational quantum eigensolvers for quantum chemistry

npj Quantum Information - Adaptive, problem-tailored variational quantum eigensolver mitigates rough parameter landscapes and barren plateaus