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arXiv:2604.06604v1 Announce Type: new Abstract: Magic states play an important role in fault-tolerant quantum computation, and so the quantification of magic for quantum states is of great significanc…
arXiv:2604.06584v1 Announce Type: new Abstract: A particular type of linear optical multiport, the Grover four-port, has previously been shown to couple the spatial symmetry of a photon to its directi…
arXiv:2604.06578v1 Announce Type: new Abstract: Grover's algorithm searches for data satisfying a desired condition in an unstructured database. This algorithm can search a space of size $N$ in $\sqrt…
arXiv:2604.06574v1 Announce Type: new Abstract: The purpose of this paper is to investigate the coherent feedback $H^\infty$ control problem for linear quantum systems. A key contribution is a simplif…
arXiv:2604.06565v1 Announce Type: new Abstract: Robust continuous-variable (CV) quantum information processing requires correcting realistic errors in bosonic systems, but all existing schemes rely on…
arXiv:2604.06528v1 Announce Type: new Abstract: The field of high-dimensional quantum photonics involves the use of multimode photonic degrees-of-freedom such as the spatial, temporal, or spectral str…
arXiv:2604.06523v1 Announce Type: new Abstract: Quantum operations on pure states can be fully represented by unitary matrices. Variational quantum circuits, also known as quantum neural networks, emb…
arXiv:2604.06466v1 Announce Type: new Abstract: We unite two of the most widely used approaches for strongly damped, non-Markovian open quantum dynamics, the Hierarchical Equations of Motion (HEOM) an…
arXiv:2604.06461v1 Announce Type: new Abstract: We introduce a systematic protocol for constructing quantum Hilbert-space-fragmented Hamiltonians, whose Krylov-sector structure, unlike in classically …
arXiv:2604.06457v1 Announce Type: new Abstract: Although quantum random number generators rely on the inherent indeterminism of quantum mechanics, ensuring that the numbers produced are secure remains…
arXiv:2604.06455v1 Announce Type: new Abstract: We develop a dissipative extension of classical mechanics based on a complex, and more generally quaternionic, action principle that endows every classi…
arXiv:2604.06450v1 Announce Type: new Abstract: A basic model is provided that places active, intentional choices by biological organisms on a solid physical footing. The model is provisionally called…
arXiv:2604.06412v1 Announce Type: new Abstract: Complex numbers are central to the formulation of quantum mechanics, yet their role as a genuine resource is only beginning to be understood. In this wo…
arXiv:2604.06410v1 Announce Type: new Abstract: Radiative coupling between quantum emitters leads to a range of spectacular emission phenomena. Dicke studied the foundations of collectively enhanced a…
arXiv:2604.06325v1 Announce Type: new Abstract: We study the task of lifting arbitrary quantum states and channels to purifications and Stinespring dilations, respectively, in both the probabilistic e…
arXiv:2604.06322v1 Announce Type: new Abstract: General relativity and quantum mechanics are incompatible at the Planck scale. This contention can be examined if a quantum computer is set to operate a…
arXiv:2604.06319v1 Announce Type: new Abstract: Quantum computer hardware is predicted to scale over hundreds of thousands of qubits coming online in the next decade. Despite significant theoretical a…
arXiv:2604.06303v1 Announce Type: new Abstract: We study the protocol of entanglement harvesting when two local probes couple to the vacuum of a real scalar quantum field with arbitrary temporal profi…
arXiv:2604.06270v1 Announce Type: new Abstract: Efficient data encoding is the main factor affecting how fast hybrid quantum-classical algorithms run, but traditional simulators spend most of their ti…
Why the mind-bending physics of quantum computing is terrifying for bitcoin and crypto CoinDesk
Circle Arc security roadmap targets post-quantum wallets in 2026 amid rising quantum threats MEXC
Fully Programmable Quantum Computing With Trapped-ions Quantum Zeitgeist
Alice & Bob, a quantum computing firm, has secured €130 million in funding and employs over 200 people. The 2020-founded company also unveiled a new brand identity, emphasizing its “cat qubit” technol…
The Quantum Kid, a podcast and YouTube channel, has received a 2026 Webby Awards People’s Choice nomination after gaining 113,000 subscribers since its June 2025 launch. The channel explores complex s…