Quantum 7, 1063 (2023). https://doi.org/10.22331/q-2023-07-20-1063 Quantum systems can be dynamically controlled using time-periodic external fields, leading to the concept of Floquet engineering, with promising technological applications. Computing Floquet energy spectra is harder than only computing […]
Quantum 7, 1062 (2023). https://doi.org/10.22331/q-2023-07-20-1062 Quantum software tools for a wide variety of design tasks on and across different levels of abstraction are crucial in order to eventually realize useful quantum applications. This requires practical […]
Quantum 7, 1061 (2023). https://doi.org/10.22331/q-2023-07-20-1061 The triangular-lattice Fermi-Hubbard model has been extensively investigated in the literature due to its connection to chiral spin states and unconventional superconductivity. Previous simulations of the ground state of the […]
Quantum 7, 1060 (2023). https://doi.org/10.22331/q-2023-07-13-1060 When error correction becomes possible it will be necessary to dedicate a large number of physical qubits to each logical qubit. Error correction allows for deeper circuits to be run, […]
Quantum 7, 1059 (2023). https://doi.org/10.22331/q-2023-07-13-1059 The detrimental effect of noise accumulates as quantum computers grow in size. In the case where devices are too small or noisy to perform error correction, error mitigation may be […]
Quantum 7, 1058 (2023). https://doi.org/10.22331/q-2023-07-12-1058 Surface code error correction offers a highly promising pathway to achieve scalable fault-tolerant quantum computing. When operated as stabilizer codes, surface code computations consist of a syndrome decoding step where […]
Quantum 7, 1057 (2023). https://doi.org/10.22331/q-2023-07-12-1057 Semidefinite programs are optimization methods with a wide array of applications, such as approximating difficult combinatorial problems. One such semidefinite program is the Goemans-Williamson algorithm, a popular integer relaxation technique. […]
Quantum 7, 1056 (2023). https://doi.org/10.22331/q-2023-07-12-1056 Random walks (or Markov chains) are models extensively used in theoretical computer science. Several tools, including analysis of quantities such as hitting and mixing times, are helpful for devising randomized […]
Quantum 7, 1055 (2023). https://doi.org/10.22331/q-2023-07-11-1055 Quantum speed limits (QSLs) provide lower bounds on the minimum time required for a process to unfold by using a distance between quantum states and identifying the speed of evolution […]
Quantum 7, 1054 (2023). https://doi.org/10.22331/q-2023-07-11-1054 In device-independent quantum information, correlations between local measurement outcomes observed by spatially separated parties in a Bell test play a fundamental role. Even though it is long-known that the set […]
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