Zobrazeno 1 - 10
of 910
pro vyhledávání: '"van Dam, H."'
Autor:
Aprà, E., Bylaska, E. J., de Jong, W. A., Govind, N., Kowalski, K., Straatsma, T. P., Valiev, M., van Dam, H. J. J., Alexeev, Y., Anchell, J., Anisimov, V., Aquino, F. W., Atta-Fynn, R., Autschbach, J., Bauman, N. P., Becca, J. C., Bernholdt, D. E., Bhaskaran-Nair, K., Bogatko, S., Borowski, P., Boschen, J., Brabec, J., Bruner, A., Cauët, E., Chen, Y., Chuev, G. N., Cramer, C. J., Daily, J., Deegan, M. J. O., Dunning Jr., T. H., Dupuis, M., Dyall, K. G., Fann, G. I., Fischer, S. A., Fonari, A., Früuchtl, H., Gagliardi, L., Garza, J., Gawande, N., Ghosh, S., Glaesemann, K., Götz, A. W., Hammond, J., Helms, V., Hermes, E. D., Hirao, K., Hirata, S., Jacquelin, M., Jensen, L., Johnson, B. G., Jónsson, H., Kendall, R. A., Klemm, M., Kobayashi, R., Konkov, V., Krishnamoorthy, S., Krishnan, M., Lin, Z., Lins, R. D., Littlefield, R. J., Logsdail, A. J., Lopata, K., Ma, W., Marenich, A. V., del Campo, J. Martin, Mejia-Rodriguez, D., Moore, J. E., Mullin, J. M., Nakajima, T., Nascimento, D. R., Nichols, J. A., Nichols, P. J., Nieplocha, J., de la Roza, A. Otero, Palmer, B., Panyala, A., Pirojsirikul, T., Peng, B., Peverati, R., Pittner, J., Pollack, L., Richard, R. M., Sadayappan, P., Schatz, G. C., Shelton, W. A., Silverstein, D. W., Smith, D. M. A., Soares, T. A., Song, D., Swart, M., Taylor, H. L., Thomas, G. S., Tipparaju, V., Truhlar, D. G., Tsemekhman, K., Van Voorhis, T., Vázquez-Mayagoitia, Á., Verma, P., Villa, O., Vishnu, A., Vogiatzis, K. D., Wang, D., Weare, J. H., Williamson, M. J., Windus, T. L., Woliński, K., Wong, A. T., Wu, Q., Yang, C., Yu, Q., Zacharias, M., Zhang, Z., Zhao, Y., Harrison, R. J.
Publikováno v:
J. Chem. Phys., 152, 184102 (2020)
Specialized computational chemistry packages have permanently reshaped the landscape of chemical and materials science by providing tools to support and guide experimental efforts and for the prediction of atomistic and electronic properties. In this
Externí odkaz:
http://arxiv.org/abs/2004.12023
Autor:
Ng, Y. Jack, van Dam, H.
Publikováno v:
Phys.Lett.B673:237-239,2009
The $(3 + 1)$-dimensional (generalized) Dirac equation is shown to have the same form as the equation expressing the condition that a given point lies on a given line in 3-dimensional projective space. The resulting Hamiltonian with a $\gamma_5$ mass
Externí odkaz:
http://arxiv.org/abs/0901.2579
Publikováno v:
Phys.Rev.Lett. 96 (2006) 051301
Due to quantum fluctuations, spacetime is probably ``foamy'' on very small scales. We propose to detect this texture of spacetime foam by looking for core-halo structures in the images of distant quasars. We find that the Very Large Telescope interfe
Externí odkaz:
http://arxiv.org/abs/gr-qc/0508121
Autor:
Ng, Y. Jack, van Dam, H.
Publikováno v:
Int.J.Mod.Phys. A21 (2006) 297-312
Neutrices are additive groups of negligible functions that do not contain any constants except 0. Their calculus was developed by van der Corput and Hadamard in connection with asymptotic series and divergent integrals. We apply neutrix calculus to q
Externí odkaz:
http://arxiv.org/abs/hep-th/0502163
Autor:
Ng, Y. Jack, van Dam, H.
Publikováno v:
J.Phys. A38 (2005) L317
In general, quantum field theories (QFT) require regularizations and infinite renormalizations due to ultraviolet divergences in their loop calculations. Furthermore, perturbation series in theories like QED are not convergent series, but are asympto
Externí odkaz:
http://arxiv.org/abs/hep-th/0410285
Autor:
Ng, Y. Jack, van Dam, H.
Publikováno v:
Int.J.Mod.Phys. A20 (2005) 1328-1335
Spacetime foam, also known as quantum foam, has its origin in quantum fluctuations of spacetime. Arguably it is the source of the holographic principle, which severely limits how densely information can be packed in space. Its physics is also intimat
Externí odkaz:
http://arxiv.org/abs/gr-qc/0403057
Publikováno v:
Astrophys.J.591:L87-L90,2003
At Planck-scale, spacetime is "foamy" due to quantum fluctuations predicted by quantum gravity. Here we consider the possibility of using spacetime foam-induced phase incoherence of light from distant galaxies and gamma-ray bursters to probe Planck-s
Externí odkaz:
http://arxiv.org/abs/astro-ph/0302372
Autor:
Ng, Y. Jack, van Dam, H.
Publikováno v:
Phys.Lett. A309 (2003) 335-339
We give a geometrical derivation of the Dirac equation by considering a spin-1/2 particle travelling with the speed of light in a cubic spacetime lattice. The mass of the particle acts to flip the multi-component wavefunction at the lattice sites. St
Externí odkaz:
http://arxiv.org/abs/hep-th/0211002
Autor:
Ng, Y. Jack, van Dam, H.
Publikováno v:
Class.Quant.Grav. 20 (2003) 393
We have argued that quantum mechanics and general relativity give a lower bound $\delta l \gtrsim l^{1/3} l_P^{2/3}$ on the measurement uncertainty of any distance $l$ much greater than the Planck length $l_P$. Recently Baez and Olson have claimed th
Externí odkaz:
http://arxiv.org/abs/gr-qc/0209021