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Active Learning of Quantum System Hamiltonians yields Query Advantage
Arkopal Dutt, Edwin Pednault, Chai Wah Wu +4
Hamiltonian learning is an important procedure in quantum system identification, calibration, and successful operation of quantum computers. Through queries to the quantum system,…
Efficient Fully-Coherent Quantum Signal Processing Algorithms for Real-Time Dynamics Simulation
John M. Martyn, Yuan Liu, Zachary E. Chin +1
Simulating the unitary dynamics of a quantum system is a fundamental problem of quantum mechanics, in which quantum computers are believed to have significant advantage over their…
Quantum advantage for noisy channel discrimination
Zane M. Rossi, Jeffery Yu, Isaac L. Chuang +1
Many quantum mechanical experiments can be viewed as multi-round interactive protocols between known quantum circuits and an unknown quantum process. Fully quantum "coherent" acces…
Constructing Qudits from Infinite Dimensional Oscillators by Coupling to Qubits
Yuan Liu, Jasmine Sinanan-Singh, Matthew T. Kearney +2
An infinite dimensional system such as a quantum harmonic oscillator offers a potentially unbounded Hilbert space for computation, but accessing and manipulating the entire state s…
A Grand Unification of Quantum Algorithms
John M. Martyn, Zane M. Rossi, Andrew K. Tan +1
Quantum algorithms offer significant speedups over their classical counterparts for a variety of problems. The strongest arguments for this advantage are borne by algorithms for qu…
Quantum Hypothesis Testing with Group Structure
Zane M. Rossi, Isaac L. Chuang
The problem of discriminating between many quantum channels with certainty is analyzed under the assumption of prior knowledge of algebraic relations among possible channels. It is…