2 citations · 3 across the 6 of their papers we have counts for
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An exponential query advantage from access to Stinespring dilation unitaries in quantum channel learning
Manaki Arihara, Satoshi Yoshida, Philip Taranto +1
We present a learning task for quantum channels that exhibits an exponential separation in query complexity (in terms of the number of qubits) between two access models: i) black-b…
Singular value transformation for unknown quantum channels
Ryotaro Niwa, Zane Marius Rossi, Philip Taranto +1
Given the ability to apply an unknown quantum channel acting on a -dimensional system, we develop a quantum algorithm for transforming its singular values. The spectrum of a qua…
Higher-Order Quantum Operations
Philip Taranto, Simon Milz, Mio Murao +2
An operational description of quantum phenomena concerns developing models that describe experimentally observed behaviour. $\textit{Higher-order quantum operations}\unicode{x2014}…
Exponential separation in quantum query complexity of the quantum switch with respect to simulations with standard quantum circuits
Hlér Kristjánsson, Tatsuki Odake, Satoshi Yoshida +4
Quantum theory is consistent with a computational model permitting black-box operations to be applied in an indefinite causal order, going beyond the standard circuit model of comp…
Simulating the quantum switch with quantum circuits is computationally hard
Jessica Bavaresco, Hlér Kristjánsson, Mio Murao +4
Higher-order transformations acting on input quantum channels in an indefinite causal order, such as the quantum switch, cannot be described by quantum circuits using the same numb…
Robust Error Accumulation Suppression for Quantum Circuits
Tatsuki Odake, Philip Taranto, Nobuyuki Yoshioka +4
We present a \textit{robust error accumulation suppression} (\textbf{REAS}) technique to manage errors in quantum computers. Our method reduces the accumulation of errors in any qu…
Universal algorithm for transforming Hamiltonian eigenvalues
Tatsuki Odake, Hlér Kristjánsson, Philip Taranto +1
Manipulating Hamiltonians governing physical systems has found a broad range of applications, from quantum chemistry to semiconductor design. In this work, we provide a new way of…