Zobrazeno 1 - 10
of 111
pro vyhledávání: '"Creffield, C. E."'
Publikováno v:
J. Phys. B 55 135301 (2022)
We study the expansion of a one-dimensional boson gas by suddenly increasing the length of the chain where it resides. We consider three initial ground-state configurations: the Mott insulator, the conventional superfluid clumped around zero momentum
Externí odkaz:
http://arxiv.org/abs/2107.13398
Autor:
He, Ran, Ai, Ming-Zhong, Cui, Jin-Ming, Huang, Yun-Feng, Han, Yong-Jian, Li, Chuan-Feng, Guo, Guang-Can, Sierra, G., Creffield, C. E.
Publikováno v:
npj Quantum Information volume 7, Article number: 109 (2021)
The non-trivial zeros of the Riemann zeta function are central objects in number theory. In particular, they enable one to reproduce the prime numbers. They have also attracted the attention of physicists working in Random Matrix Theory and Quantum C
Externí odkaz:
http://arxiv.org/abs/2102.06936
Publikováno v:
Phys. Rev. Research 1, 033013 (2019)
We investigate the behavior of a one-dimensional Bose-Hubbard gas in both a ring and a hard-wall box, whose kinetic energy is made to oscillate with zero time-average, which suppresses first-order particle hopping. For intermediate and large driving
Externí odkaz:
http://arxiv.org/abs/1905.13596
Autor:
He, Ran, Ai, Ming-Zhong, Cui, Jin-Ming, Huang, Yun-Feng, Han, Yong-Jian, Li, Chuan-Feng, Tu, Tao, Creffield, C. E., Sierra, G., Guo, Guang-Can
Publikováno v:
Phys. Rev. A 101, 043402 (2020)
The Riemann hypothesis, one of the most important open problems in pure mathematics, implies the most profound secret of prime numbers. One of the most interesting approaches to solve this hypothesis is to connect the problem with the spectrum of the
Externí odkaz:
http://arxiv.org/abs/1903.07819
Autor:
Creffield, C. E.
Publikováno v:
Phys. Rev. A 98, 063609 (2018)
We study the dynamics of an Airy wavepacket moving in a one-dimensional lattice potential. In contrast to the usual case of propagation in a continuum, for which such a wavepacket experiences a uniform acceleration, the lattice bounds its velocity, a
Externí odkaz:
http://arxiv.org/abs/1808.10676
Publikováno v:
New Journal of Physics 18, 093013 (2016)
Shaking a lattice system, by modulating the location of its sites periodically in time, is a powerful method to create effective magnetic fields in engineered quantum systems, such as cold gases trapped in optical lattices. However, such schemes are
Externí odkaz:
http://arxiv.org/abs/1605.09604
Publikováno v:
Scientific Reports 6, 22562 (2016)
The controlled transfer of particles from one site of a spatial lattice to another is essential for many tasks in quantum information processing and quantum communication. Arrays of semiconductor quantum dots and ultracold atoms held in optical latti
Externí odkaz:
http://arxiv.org/abs/1510.01379
Autor:
Creffield, C. E., Sierra, G.
Publikováno v:
Phys. Rev. A 91, 063608 (2015)
The Riemann hypothesis, which states that the non-trivial zeros of the Riemann zeta function all lie on a certain line in the complex plane, is one of the most important unresolved problems in mathematics. Inspired by the P\'olya-Hilbert conjecture,
Externí odkaz:
http://arxiv.org/abs/1411.0459
Autor:
Creffield, C. E., Sols, F.
Publikováno v:
Phys. Rev. A 90, 023636 (2014)
We describe a method to generate a synthetic gauge potential for ultracold atoms held in an optical lattice. Our approach uses a time-periodic driving potential based on two quickly alternating signals to engineer the appropriate Aharonov-Bohm phases
Externí odkaz:
http://arxiv.org/abs/1403.5915
Publikováno v:
Phys. Rev. A 89, 013624 (2014)
By using a modulated magnetic field in a Feshbach resonance for ultracold fermionic atoms in optical lattices, we show that it is possible to engineer a class of models usually referred to as correlated-hopping models. These models differ from the Hu
Externí odkaz:
http://arxiv.org/abs/1310.7959