Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Baldwin, Christopher L."'
Autor:
Baldwin, Christopher L.
We rigorously prove that in nearly arbitrary quantum spin chains with power-law-distributed random fields, namely such that the probability of a field exceeding $h$ scales as $h^{-\alpha}$, it is impossible for any operator evolving in the Heisenberg
Externí odkaz:
http://arxiv.org/abs/2409.17242
We study the equilibrium thermodynamics of quantum hard spheres in the infinite-dimensional limit, determining the boundary between liquid and glass phases in the temperature-density plane by means of the Franz-Parisi potential. We find that as the t
Externí odkaz:
http://arxiv.org/abs/2311.04968
There is an ambiguity in how to apply the replica trick to spin glass models which have additional order parameters unrelated to spin glass order -- with respect to which quantities does one minimize vs maximize the action, and in what sequence? Here
Externí odkaz:
http://arxiv.org/abs/2302.01361
Publikováno v:
SciPost Phys. 15, 084 (2023)
Glasses have the interesting feature of being neither integrable nor fully chaotic. They thermalize quickly within a subspace but thermalize much more slowly across the full space due to high free energy barriers which partition the configuration spa
Externí odkaz:
http://arxiv.org/abs/2302.00703
By tightening the conventional Lieb-Robinson bounds to better handle systems which lack translation invariance, we determine the extent to which "weak links" suppress operator growth in disordered one-dimensional spin chains. In particular, we prove
Externí odkaz:
http://arxiv.org/abs/2208.05509
Autor:
Ehrenberg, Adam, Deshpande, Abhinav, Baldwin, Christopher L., Abanin, Dmitry A., Gorshkov, Alexey V.
We use complexity theory to rigorously investigate the difficulty of classically simulating evolution under many-body localized (MBL) Hamiltonians. Using the defining feature that MBL systems have a complete set of quasilocal integrals of motion (LIO
Externí odkaz:
http://arxiv.org/abs/2205.12967
It is widely expected that systems which fully thermalize are chaotic in the sense of exhibiting random-matrix statistics of their energy level spacings, whereas integrable systems exhibit Poissonian statistics. In this paper, we investigate a third
Externí odkaz:
http://arxiv.org/abs/2203.12753
Autor:
Tran, Minh C., Guo, Andrew Y., Baldwin, Christopher L., Ehrenberg, Adam, Gorshkov, Alexey V., Lucas, Andrew
The Lieb-Robinson theorem states that information propagates with a finite velocity in quantum systems on a lattice with nearest-neighbor interactions. What are the speed limits on information propagation in quantum systems with power-law interaction
Externí odkaz:
http://arxiv.org/abs/2103.15828
Publikováno v:
J Stat Phys 182, 38 (2021)
We study Eigen's model of quasi-species, characterized by sequences that replicate with a specified fitness and mutate independently at single sites. The evolution of the population vector in time is then closely related to that of quantum spins in i
Externí odkaz:
http://arxiv.org/abs/2003.10668
Autor:
Brady, Lucas T., Baldwin, Christopher L., Bapat, Aniruddha, Kharkov, Yaroslav, Gorshkov, Alexey V.
Publikováno v:
Phys. Rev. Lett. 126, 070505 (2021)
Quantum Annealing (QA) and the Quantum Approximate Optimization Algorithm (QAOA) are two special cases of the following control problem: apply a combination of two Hamiltonians to minimize the energy of a quantum state. Which is more effective has re
Externí odkaz:
http://arxiv.org/abs/2003.08952