Zobrazeno 1 - 10
of 1 293
pro vyhledávání: '"P Dalzell"'
A central challenge in quantum simulation is to prepare low-energy states of strongly interacting many-body systems. In this work, we study the problem of preparing a quantum state that optimizes a random all-to-all, sparse or dense, spin or fermioni
Externí odkaz:
http://arxiv.org/abs/2411.02578
Autor:
Sharma, Niyorjyoti, Holsgrove, Kristina M., Dalzell, James, McCluskey, Conor J., He, Jilai, Meier, Dennis, Prabhakaran, Dharmalingam, Rodriguez, Brian J., McQuaid, Raymond G. P., Gregg, J. Marty, Kumar, Amit
The electrical response of ferroelectric domain walls is often influenced by their geometry underneath the sample surface. Tomographic imaging in these material systems has therefore become increasingly important for its ability to correlate the surf
Externí odkaz:
http://arxiv.org/abs/2410.10043
Autor:
Dalzell, Alexander M.
Given a linear system of equations $A\boldsymbol{x}=\boldsymbol{b}$, quantum linear system solvers (QLSSs) approximately prepare a quantum state $|\boldsymbol{x}\rangle$ for which the amplitudes are proportional to the solution vector $\boldsymbol{x}
Externí odkaz:
http://arxiv.org/abs/2406.12086
Autor:
Dalzell, Alexander M., McArdle, Sam, Berta, Mario, Bienias, Przemyslaw, Chen, Chi-Fang, Gilyén, András, Hann, Connor T., Kastoryano, Michael J., Khabiboulline, Emil T., Kubica, Aleksander, Salton, Grant, Wang, Samson, Brandão, Fernando G. S. L.
The anticipated applications of quantum computers span across science and industry, ranging from quantum chemistry and many-body physics to optimization, finance, and machine learning. Proposed quantum solutions in these areas typically combine multi
Externí odkaz:
http://arxiv.org/abs/2310.03011
Autor:
Levine, Harry, Haim, Arbel, Hung, Jimmy S. C., Alidoust, Nasser, Kalaee, Mahmoud, DeLorenzo, Laura, Wollack, E. Alex, Arrangoiz-Arriola, Patricio, Khalajhedayati, Amirhossein, Sanil, Rohan, Moradinejad, Hesam, Vaknin, Yotam, Kubica, Aleksander, Hover, David, Aghaeimeibodi, Shahriar, Alcid, Joshua Ari, Baek, Christopher, Barnett, James, Bawdekar, Kaustubh, Bienias, Przemyslaw, Carson, Hugh, Chen, Cliff, Chen, Li, Chinkezian, Harut, Chisholm, Eric M., Clifford, Andrew, Cosmic, R., Crisosto, Nicole, Dalzell, Alexander M., Davis, Erik, D'Ewart, J. Mitch, Diez, Sandra, D'Souza, Nathan, Dumitrescu, Philipp T., Elkhouly, Essam, Fang, Michael, Fang, Yawen, Flammia, Steven T., Fling, Matthew J., Garcia, Gabriel, Gharzai, M. Kabeer, Gorshkov, Alexey V., Gray, Mason J., Grimberg, Sebastian, Grimsmo, Arne L., Hann, Connor T., He, Yuan, Heidel, Steven, Howell, Sean, Hunt, Matthew, Iverson, Joseph K., Jarrige, Ignace, Jiang, Liang, Jones, William M., Karabalin, Rassul, Karalekas, Peter J., Keller, Andrew J., Lasi, Davide, Lee, Menyoung, Ly, Victor, MacCabe, Gregory S., Mahuli, Neha, Marcaud, Guillaume, Matheny, Matthew H., McArdle, Sam, McCabe, Gavin, Merton, Gabe, Miles, Cody, Milsted, Ashley, Mishra, Anurag, Moncelsi, Lorenzo, Naghiloo, Mahdi, Noh, Kyungjoo, Oblepias, Eric, Ortuno, Gerson, Owens, John Clai, Pagdilao, Jason, Panduro, Ashley, Paquette, J. -P., Patel, Rishi N., Peairs, Gregory A., Perello, David J., Peterson, Eric C., Ponte, Sophia, Putterman, Harald, Refael, Gil, Reinhold, Philip, Resnick, Rachel, Reyna, Omar A., Rodriguez, Roberto, Rose, Jefferson, Rubin, Alex H., Runyan, Marc, Ryan, Colm A., Sahmoud, Abdulrahman, Scaffidi, Thomas, Shah, Bhavik, Siavoshi, Salome, Sivarajah, Prasahnt, Skogland, Trenton, Su, Chun-Ju, Swenson, Loren J., Sylvia, Jared, Teo, Stephanie M., Tomada, Astrid, Torlai, Giacomo, Wistrom, Mark, Zhang, Kailing, Zuk, Ido, Clerk, Aashish A., Brandão, Fernando G. S. L., Retzker, Alex, Painter, Oskar
Publikováno v:
Physical Review X 14, 011051 (2024)
Quantum error correction with erasure qubits promises significant advantages over standard error correction due to favorable thresholds for erasure errors. To realize this advantage in practice requires a qubit for which nearly all errors are such er
Externí odkaz:
http://arxiv.org/abs/2307.08737
Publikováno v:
Quantum 8, 1257 (2024)
We propose a novel deterministic method for preparing arbitrary quantum states. When our protocol is compiled into CNOT and arbitrary single-qubit gates, it prepares an $N$-dimensional state in depth $O(\log(N))$ and spacetime allocation (a metric th
Externí odkaz:
http://arxiv.org/abs/2303.02131
Autor:
Chi-Fang, Chen, Dalzell, Alexander M., Berta, Mario, Brandão, Fernando G. S. L., Tropp, Joel A.
A candidate application for quantum computers is to simulate the low-temperature properties of quantum systems. For this task, there is a well-studied quantum algorithm that performs quantum phase estimation on an initial trial state that has a nonne
Externí odkaz:
http://arxiv.org/abs/2302.03394
We present a quantum algorithm that has rigorous runtime guarantees for several families of binary optimization problems, including Quadratic Unconstrained Binary Optimization (QUBO), Ising spin glasses ($p$-spin model), and $k$-local constraint sati
Externí odkaz:
http://arxiv.org/abs/2212.01513
Autor:
Dalzell, Alexander M., Clader, B. David, Salton, Grant, Berta, Mario, Lin, Cedric Yen-Yu, Bader, David A., Stamatopoulos, Nikitas, Schuetz, Martin J. A., Brandão, Fernando G. S. L., Katzgraber, Helmut G., Zeng, William J.
Publikováno v:
PRX Quantum 4, 040325 (2023)
We study quantum interior point methods (QIPMs) for second-order cone programming (SOCP), guided by the example use case of portfolio optimization (PO). We provide a complete quantum circuit-level description of the algorithm from problem input to pr
Externí odkaz:
http://arxiv.org/abs/2211.12489
Autor:
Lee, Seunghoon, Lee, Joonho, Zhai, Huanchen, Tong, Yu, Dalzell, Alexander M., Kumar, Ashutosh, Helms, Phillip, Gray, Johnnie, Cui, Zhi-Hao, Liu, Wenyuan, Kastoryano, Michael, Babbush, Ryan, Preskill, John, Reichman, David R., Campbell, Earl T., Valeev, Edward F., Lin, Lin, Chan, Garnet Kin-Lic
Publikováno v:
Nat Commun 14, 1952 (2023)
The idea to use quantum mechanical devices to simulate other quantum systems is commonly ascribed to Feynman. Since the original suggestion, concrete proposals have appeared for simulating molecular and materials chemistry through quantum computation
Externí odkaz:
http://arxiv.org/abs/2208.02199