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【北京大学物理化学讲座】The route going from transition path time distributions and protein folding times, to quantum mechanics, tunneling times and nonadiabatic transition times（图）
route going transition path time distributions quantum mechanics
2023/6/19
【北京大学物理化学讲座】The route going from transition path time distributions and protein folding times, to quantum mechanics, tunneling times and nonadiabatic transition times
From Transistor to Trapped-ion Computers for Quantum Chemistry
Transistor Trapped-ion Computers Quantum Chemistry
2016/1/22
Over the last few decades, quantum chemistry has progressed through the development of computational methods based on modern digital computers. However, these methods can hardly fulfill the exponentia...
The 15th ICQC International Congress of Quantum Chemistry
The 15th ICQC International Congress of Quantum Chemistry
2015/1/8
We cordially invite you to attend the 15th International Congress of Quantum Chemistry, (15th ICQC), June 8-13, 2015, which will take place in the beautiful campus of Tsinghua University in the city o...
The University of Queensland team challenges the limits of famous quantum principle（图）
quantum principle quantum particles
2014/7/9
A team of physicists is challenging the very limits of Heisenberg’s famous uncertainty principle by measuring quantum particles with unprecedented accuracy.
Optimal tunneling enhances the quantum photovoltaic effect in double quantum dots
electronic transport in mesoscopic systems photoconduction and photovoltaic effect quantum dots quantum description of interaction of light and matter
2014/9/24
We investigate the quantum photovoltaic effect in double quantum dots by applying the nonequilibrium quantum master equation. A drastic suppression of the photovoltaic current is observed near the ope...
Quantum Separation of Local Search and Fixed Point Computation
Quantum query complexity Fixed-point computation Local search Sperner’s lemma Quantum adversary method
2012/12/4
We give a lower bound of (n(d−1)/2) on the quantum query complexity for finding a fixed point of a discrete Brouwer function over grid [n]d. Our lower
bound is nearly tight, as Grover Search c...
Pairing in graphene: A quantum Monte Carlo study
Pairing in graphene A quantum Monte Carlo study
2014/5/28
To address the issue of electron correlation driven superconductivity in graphene, we perform a systematic quantum Monte Carlo study of the pairing correlation in the t -U-V Hubbard model on a honeyco...
Photosynthesis takes a leaf out of the quantum book（图）
photosynthesis quantum solar energy
2007/4/16
13 April 2007，Quantum computers and blades of grass have more in common than you might think. Physicists in the US have shown that electrons involved in photosynthesis reactions "sample" different ene...
March 1, 2007，As if building a computer out of rubidium atoms and laser beams weren’t difficult enough, scientists sometimes have to work as if blindfolded: The quirks of quantum physics can cause cor...
Quantum-Classical Correspondence in Response Theory
Quantum-Classical Correspondence Response Theory
2014/9/24
The correspondence principle between the quantum commutator^A;^ B and the classical Poisson brackets@fA; Bg is examined in the context of response theory. The classical response function is obtaine...
Stationary phase evaluations of quantum rate constants
Stationary phase evaluations quantum rate constants
2014/9/24
We compute the quantum rate constant based on two extended stationary phase approximations to the imaginary-time formulation of the quantum rate theory. The optimized stationary phase approximation to...
A unified framework for quantum activated rate processes. I. General theory
A unified framework quantum activated rate processes General theory
2014/9/24
It is shown that several existing quantum reaction rate theories can be unified around a single mathematical framework. These theories include the high temperature parabolic barrier approximation, the...
A new perspective on quantum time correlation functions
quantum time correlation functions
2014/9/24
A theoretical analysis suggests that the path centroid variable in Feynman path integration occupies a central role in the behavior of the real time position autocorrelation function. Based on this an...
A new quantum propagator for hard sphere and cavity systems
quantum propagator hard sphere cavity systems
2014/9/24
A new short time propagator for a particle interacting with a hard sphere or with a hard sphere cavity is derived. This new propagator is shown to be a much better approximation than the image approxi...