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- Laura K McKemmish, Jeffrey R Reimers, Ross H McKenzie, Alan E Mark, Noel S Hush
- Physical review. E, Statistical, nonlinear, and…
- 2009

Penrose and Hameroff have argued that the conventional models of a brain function based on neural networks alone cannot account for human consciousness, claiming that quantum-computation elements are also required. Specifically, in their Orchestrated Objective Reduction (Orch OR) model [R. Penrose and S. R. Hameroff, J. Conscious. Stud. 2, 99 (1995)], it is… (More)

- Michele Ceriotti, Wei Fang, Peter G Kusalik, Ross H McKenzie, Angelos Michaelides, Miguel A Morales +1 other
- Chemical reviews
- 2016

Nuclear quantum effects influence the structure and dynamics of hydrogen-bonded systems, such as water, which impacts their observed properties with widely varying magnitudes. This review highlights the recent significant developments in the experiment, theory, and simulation of nuclear quantum effects in water. Novel experimental techniques, such as deep… (More)

- B J Powell, T Baruah, N Bernstein, K Brake, Ross H McKenzie, P Meredith +1 other
- The Journal of chemical physics
- 2004

We report first-principles density-functional calculations for hydroquinone (HQ), indolequinone (IQ), and semiquinone (SQ). These molecules are believed to be the basic building blocks of the eumelanins, a class of biomacromolecules with important biological functions (including photoprotection) and with the potential for certain bioengineering… (More)

Algebraic Bethe ansatz method for the exact calculation of energy spectra and form factors: applications to models of Bose-Einstein condensates and metallic nanograins Abstract In this review we demonstrate how the algebraic Bethe ansatz is used for the calculation of the energy spectra and form factors (operator matrix elements in the basis of Hamiltonian… (More)

We give a theoretical treatment of the interaction of electronic excitations (excitons) in biomolecules and quantum dots with the surrounding polar solvent. Significant quantum decoherence occurs due to the interaction of the electric dipole moment of the solute with the fluctuating electric dipole moments of the individual molecules in the solvent. We… (More)

- Joel Gilmore, Ross H McKenzie
- The journal of physical chemistry. A
- 2008

A biomolecular chromophore can be viewed as a quantum system with a small number of degrees of freedom interacting with an environment (the surrounding protein and solvent) which has many degrees of freedom, the majority of which can be described classically. The system-environment interaction can be described by a spectral density for a spin-boson model.… (More)

Derivation of the probability distribution function for the local density of states of a disordered quantum wire via the replica trick and supersymmetry Abstract We consider the statistical properties of the local density of states of a one-dimensional Dirac equation in the presence of various types of disorder with Gaussian white-noise distribution. It is… (More)

- Ross H. McKenzie
- 1998

The fascinating electronic properties of the family of layered organic molecular crystals κ-(BEDT-TTF)2X where X is an anion (e.g., X=I3, Cu[N(CN)2]Br, Cu(SCN)2) are reviewed. These materials are particularly interesting because of similarities to the high-Tc cuprate superconductors including unconventional metallic properties and competition between… (More)

- Ross H McKenzie, Bijyalaxmi Athokpam, Sai G Ramesh
- The Journal of chemical physics
- 2015

If a deuterated molecule containing strong intramolecular hydrogen bonds is placed in a hydrogenated solvent, it may preferentially exchange deuterium for hydrogen. This preference is due to the difference between the vibrational zero-point energy for hydrogen and deuterium. It is found that the associated fractionation factor Φ is correlated with the… (More)

A new algebraic Bethe ansatz scheme is proposed to diagonalise classes of in-tegrable models relevant to the description of Bose-Einstein condensation in dilute alkali gases. This is achieved by introducing the notion of Z-graded representations of the Yang-Baxter algebra.