622 citations · 1.3k across the 26 of their papers we have counts for
26 papers
Lie-Algebraic Bounds on Quantum Control Time via the Baker-Campbell-Hausdorff Formula
Go Kato, Masaki Owari, Koji Maruyama
The time required to implement a desired unitary operation is a central issue in quantum control, especially for many-body systems with limited control access. While controllabilit…
Algebra and Hilbert space structures induced by quantum probes
Go Kato, Masaki Owari, Koji Maruyama
In the general setting of quantum controls, it is unrealistic to control all of the degrees of freedom of a quantum system. We consider a scenario where our direct access is restri…
Gateway schemes of quantum control for spin networks
Koji Maruyama, Daniel Burgarth
Towards the full-fledged quantum computing, what do we need? Obviously, the first thing we need is a (many-body) quantum system, which is reasonably isolated from its environment i…
Operational derivation of Maxwell-Boltzmann distribution with Maxwell's demon model
Akio Hosoya, Koji Maruyama, Yutaka Shikano
The resolution of the Maxwell's demon paradox linked thermodynamics with information theory through information erasure principle. By considering a demon endowed with a Turing-mach…
Probing untouchable environment as a resource for quantum computing
Masaki Owari, Koji Maruyama, Takeji Takui +1
When manipulating a quantum system , its surrounding system, or \textit{environment}, induces unwanted effects. It is mainly due to its vastness and the lack of knowledge ab…
Package of facts and theorems for efficiently generating entanglement criteria for many qubits
Marcin Wieśniak, Koji Maruyama
We present a package of mathematical theorems, which allow to construct multipartite entanglement criteria. Importantly, establishing bounds for certain classes of entanglement doe…