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Mysterious Majorana quasiparticle is now closer to being controlled for quantum computing（图）
Majorana quasiparticle controlled quantum computing
2019/10/23
The fame of the Majorana particle stems from its strange properties -- it is the only particle that is its own antiparticle -- and from its potential to be harnessed for future quantum computing.In re...
New Trends in Low Dimensional Physics: Quantum Integrability and Applications
thermalization properties quantum systems
2016/7/25
The workshop 揘ew Trends in Low-Dimensional Physics: Quantum Integrability and Applications?focuses on integrability, as one of the most significant concepts of modern science, characterized by a wide ...
Operator algebra quantum groups of universal gauge groups
Operator algebra quantum groups universal gauge groups
2010/12/24
In this paper, we quantize universal gauge groups such as SU(\infty), in the sigma-C*-algebra setting. More precisely, we propose a concise definition of sigma-C*-quantum groups and explain the conce...
Background independent condensed matter models for quantum gravity
Background independent condensed matter models quantum gravity
2010/12/27
A number of recent proposals for a quantum theory of gravity are based on the idea that spacetime geometry and gravity are derivative concepts and only apply at an approximate level. There are two fu...
On the one hand, inflation is an extremely convincing scenario: it solves most cosmological paradoxes and generates fluctuations that became the seeds for the growth of structures. It, however, suffer...
Particle with non-Abelian charge: classical and quantum
non-Abelian charge classical quantum
2010/12/23
We construct an action in the worldline formalism for a non-Abelian charged particle in a non-Abelian background field, described by real bosonic variables, leading to a set of the well known classica...
The Conformal Constraint in Canonical Quantum Gravity
The Conformal Constraint Canonical Quantum Gravity
2010/12/24
Perturbative canonical quantum gravity is considered, when coupled to a renormalizable model for matter fields. It is proposed that the functional integral over the dilaton field should be disentangle...
We use the formalism of quantum off-shell fields for the case of pure Yang-Mills fields. In this formalism one can compute in a systematic way the second order anomalies of the tree sector.
We consider the canonical quantization of an ordinary fluid. The resulting long-distance effective field theory is derivatively coupled, and therefore strongly coupled in the UV. The system however ex...
Quantum dispersion relations for excitations of long folded spinning superstring in AdS_5 x S^5
Quantum dispersion relations folded spinning superstring
2010/12/23
We use AdS_5 x S^5 superstring sigma model perturbation theory to compute the leading one-loop corrections to the dispersion relations of the excitations near a long spinning string in AdS. This inves...
Scaling and non-Abelian signature in fractional quantum Hall quasiparticle tunneling amplitude
non-Abelian signature quantum Hall quasiparticle tunneling amplitude
2010/12/27
We study the scaling behavior in the tunneling amplitude when quasiparticles tunnel along a straight path between the two edges of a fractional quantum Hall annulus. Such scaling behavior originates f...
Optical Lattice Hamiltonians for Relativistic Quantum Electrodynamics
Optical Lattice Hamiltonians Relativistic Quantum Electrodynamics
2011/1/7
We show how interpenetrating optical lattices containing Bose-Fermi mixtures can be constructed to emulate the thermodynamics of quantum electrodynamics (QED). We present models of neutral atoms on la...
We apply the nonstandard loop quantum cosmology method to quantize a flat FRW cosmological model with a free scalar field and the cosmological constant $\Lambda>0$. Modification of the Hamiltonian in ...
High-order quantum back-reaction and quantum cosmology with a positive cosmological constant
High-order quantum back-reaction quantum cosmology
2010/12/27
When quantum back-reaction by fluctuations, correlations and higher moments of a state becomes strong, semiclassical quantum mechanics resembles a dynamical system with a high-dimensional phase space....
Suppose that a system is known to be in one of two quantum states, $|\psi_1 > $ or $|\psi_2 >$. If these states are not orthogonal, then in conventional quantum mechanics it is impossible with one mea...