In a recent paper [V. Aji and C.M. Varma, Phys. Rev. Lett. {\bf 99}, 167003 (2007) \cite{aji1}] we have shown that the dissipation driven quantum phase transition of the 2D xy model represents a...
Theory of Superconductivity in the Cuprates (2008)
Aji, Vivek, Shekhter, Arkady, Varma, Chandra
The quantum critical fluctuations of the time-reversal breaking order parameter which is observed in the pseudogap regime of the Cuprates are shown to couple to the lattice equivalent of the local...
Weak Ferromagnetism Accompanying Loop current order in Underdoped Cuprates (2008)
Aji, Vivek, Shekhter, Arkady, Varma, C. M.
We discuss the necessary symmetry conditions and the different ways in which they can be physically realized for the occurrence of ferromagnetism accompanying the loop current orbital magnetic order...
Shekhter, Arkady, Shu, Lei, Aji, Vivek, MacLaughlin, D. E., Varma, C. M.
We calculate the screening charge density distribution due to a point charge, such as that of a positive muon ($\mu^+$), placed between the planes of a highly anisotropic layered metal. In underdoped...
Kondo effect in an Antiferromagnetic metal (2007)
Aji, Vivek, Varma, Chandra, Vekhter, Ilya
We study the fate of a spin-1/2 impurity in the itinerant antiferromagnetic metallic phase via a renormalization group analysis and a variational calculation. The local moment - conduction electron...
Universality of the single-particle spectra of cuprate superconductors (2007)
Zhu, Lijun, Aji, Vivek, Shekhter, Arkady, Varma, C. M.
All the available data for the dispersion and linewidth of the single-particle spectra above the superconducting gap and the pseudogap in metallic cuprates for any doping has universal features. The...
Sidis, Yvan, Fauqué, Benoit, Aji, Vivek, Bourges, Philippe
We review experimental attempts using polarized neutron scattering technique to reveal the existence in high temperature superconductors of a long-range ordered state characterized by the spontaneous...
Theory of the Quantum Critical Fluctuations in Cuprates (2006)
The statistical mechanics of the time-reversal and inversion symmetry breaking order parameter, possibly observed in the pseudogap region of the phase diagram of the Cuprates, can be represented by...
Spin Order accompanying Loop-Current Order in Cuprates (2006)
The theory of the long range order of orbital current loops in the pseudogap phase is generalized to include the effects of spin-orbit scattering. It is shown by symmetry arguments as well as by...
Electronic-vibrational coupling in single-molecule devices (2003)
Aji, Vivek, Moore, J. E., Varma, C. M.
Experiments studying vibrational effects on electronic transport through single molecules have observed several seemingly inconsistent behaviors, ranging from up to 30 harmonics of a vibrational...
Aji, Vivek, Goldenfeld, Nigel D.
This is a response to the comment by J. Lidmar on our work in Phys. Rev. Lett. 87, 197003 (2001), cond-mat/0105622. We show explicitly that, contrary to the statements in the comment, our scaling...
Critical dynamics of superconducting BSCCO films (2002)
Osborn, K. D., Van Harlingen, D. J., Aji, Vivek, Goldenfeld, Nigel, Oh, S., Eckstein, J. N.
We report on a systematic investigation of the critical fluctuations in the complex conductivity of epitaxially-grown Bi$_{2}$Sr$_{2}$CaCu$_{2}$O$_{8+\delta}$ films for ${T \lesssim T_c}$ using a...
Critical Dynamics of a Vortex Loop Model for the Superconducting Transition (2001)
We calculate analytically the dynamic critical exponent $z_{MC}$ measured in Monte Carlo simulations for a vortex loop model of the superconducting transition, and account for the simulation results....
Fluctuations in finite critical and turbulent systems (2000)
We show that hyperscaling and finite-size scaling imply that the probability distribution of the order parameter in finite size critical systems exhibit data collapse. We consider the examples of...