Zobrazeno 1 - 10
of 206
pro vyhledávání: '"Deutsch, Ivan"'
Autor:
Chow, Matthew N. H., Buchemmavari, Vikas, Omanakuttan, Sivaprasad, Little, Bethany J., Pandey, Saurabh, Deutsch, Ivan H., Jau, Yuan-Yu
Leakage out of the computational subspace is a major limitation of current state-of-the-art neutral-atom quantum computers and a significant challenge for scalable systems. In a quantum processor with cesium atoms, we demonstrate proof-of-principle c
Externí odkaz:
http://arxiv.org/abs/2405.10434
We show how the decoherence that occurs in an entangling atomic spin-light interface can be simply modeled as the dynamics of a bosonic mode. Although one seeks to control the collective spin of the atomic system in the permutationally invariant (sym
Externí odkaz:
http://arxiv.org/abs/2403.19801
Autor:
Omanakuttan, Sivaprasad, Buchemmavari, Vikas, Gross, Jonathan A., Deutsch, Ivan H, Marvian, Milad
Publikováno v:
PRX Quantum 2024
We construct a fault-tolerant quantum error-correcting protocol based on a qubit encoded in a large spin qudit using a spin-cat code, analogous to the continuous variable cat encoding. With this, we can correct the dominant error sources, namely proc
Externí odkaz:
http://arxiv.org/abs/2401.04271
Autor:
Mitra, Anupam, Albash, Tameem, Blocher, Philip Daniel, Takahashi, Jun, Miyake, Akimasa, Biedermann, Grant W., Deutsch, Ivan H.
We study the tractability of classically simulating critical phenomena in the quench dynamics of one-dimensional transverse field Ising models (TFIMs) using highly truncated matrix product states (MPS). We focus on two paradigmatic examples: a dynami
Externí odkaz:
http://arxiv.org/abs/2310.08567
Publikováno v:
Phys. Rev. A 109, 012615 (2024)
The Rydberg dipole-blockade has emerged as the standard mechanism to induce entanglement between neutral atom qubits. In these protocols, laser fields that couple qubit states to Rydberg states are modulated to implement entangling gates. Here we pre
Externí odkaz:
http://arxiv.org/abs/2307.16434
Publikováno v:
Phys. Rev. A 108, 062219 (2023)
We study how decoherence increases the efficiency with which we can simulate the quantum dynamics of an anharmonic oscillator, governed by the Kerr effect. As decoherence washes out the fine-grained subPlanck structure associated with phase-space qua
Externí odkaz:
http://arxiv.org/abs/2307.00748
Publikováno v:
PRXQuantum.4.040333(2023)
We study the generation of two-qudit entangling quantum logic gates using two techniques in quantum optimal control. We take advantage of both continuous, Lie-algebraic control and digital, Lie-group control. In both cases, the key is access to a tim
Externí odkaz:
http://arxiv.org/abs/2212.08799
We revisit well-known protocols in quantum metrology using collective spins and propose a unifying picture for optimal state preparation based on a semiclassical description in phase space. We show how this framework allows for quantitative predictio
Externí odkaz:
http://arxiv.org/abs/2211.01250
Autor:
Alsing, Paul, Battle, Phil, Bienfang, Joshua C., Borders, Tammie, Brower-Thomas, Tina, Carr, Lincoln D., Chong, Fred, Dadras, Siamak, DeMarco, Brian, Deutsch, Ivan, Figueroa, Eden, Freedman, Danna, Everitt, Henry, Gauthier, Daniel, Johnston-Halperin, Ezekiel, Kim, Jungsang, Kira, Mackillo, Kumar, Prem, Kwiat, Paul, Lekki, John, Loiacono, Anjul, Loncar, Marko, Lowell, John R., Lukin, Mikhail, Merzbacher, Celia, Miller, Aaron, Monroe, Christopher, Pollanen, Johannes, Pappas, David, Raymer, Michael, Reano, Ronald, Rodenburg, Brandon, Savage, Martin, Searles, Thomas, Ye, Jun
Quantum information science and technology (QIST) is a critical and emerging technology with the potential for enormous world impact and is currently invested in by over 40 nations. To bring these large-scale investments to fruition and bridge the lo
Externí odkaz:
http://arxiv.org/abs/2210.14757
Autor:
Mitra, Anupam, Omanakuttan, Sivaprasad, Martin, Michael J., Biedermann, Grant W., Deutsch, Ivan H.
We revisit the implementation of a two-qubit entangling gate, the M{\o}lmer-S{\o}rensen gate, using the adiabatic Rydberg dressing paradigm for neutral atoms as studied in [Phys. Rev. A 101, 030301 (R) (2020)]. We study the implementation of rapid ad
Externí odkaz:
http://arxiv.org/abs/2205.12866