Now showing items 42306-42325 of 57361

    • Quantum dot/antibody conjugates for in vivo cytometric imaging in mice 

      Han, Hee-Sun; Niemeyer, Elisabeth; Huang, Yuhui; Kamoun, Walid; Martin, John; Bhaumik, Jayeeta; Chen, Yunching; Roberge, Sylvie; Cui, Jian; Martin, Margaret; Fukumura, Dai; Jain, Rakesh; Bawendi, Moungi; Duda, Dan (National Academy of Sciences, 2015)
      Multiplexed, phenotypic, intravital cytometric imaging requires novel fluorophore conjugates that have an appropriate size for long circulation and diffusion and show virtually no nonspecific binding to cells/serum while ...
    • Quantum Dots for Conventional and Topological Qubits 

      Higginbotham, Andrew Patrick (2015-09-29)
      This thesis presents a series of quantum dot studies, performed with an eye towards improved conventional and topological qubits. Chapters 1-3 focus on improved conventional (spin) qubits; Chapters 4-6 focus on the topological ...
    • Quantum Dots in Gated Nanowires and Nanotubes 

      Churchill, Hugh Olen Hill (2012-08-17)
      This thesis describes experiments on quantum dots made by locally gating one-dimensional quantum wires. The first experiment studies a double quantum dot device formed in a Ge/Si core/shell nanowire. In addition to measuring ...
    • Quantum Dynamics in Biological Systems 

      Shim, Sangwoo (2012-12-17)
      In the first part of this dissertation, recent efforts to understand quantum mechanical effects in biological systems are discussed. Especially, long-lived quantum coherences observed during the electronic energy transfer ...
    • Quantum Dynamics in Various Noise Scenarios 

      Yu, Li (2020-05-15)
      We provide an alternative derivation of a master equation formalism for open quantum systems and apply it to illustrative examples. Using this formalism, we show that generally there can be interference between non-interacting ...
    • Quantum Dynamics of Strongly Interacting Many-Body Systems 

      Choi, Soonwon (2018-05-13)
      Recent advances in coherent manipulation and control have led to new opportunities to study non-equilibrium dynamics in quantum many-body systems. Using a variety of experimental platforms ranging from cold atoms and ions ...
    • Quantum Dynamics of Ultracold Bose Polarons 

      Shchadilova, Yulia E.; Schmidt, Richard; Grusdt, Fabian; Demler, Eugene (American Physical Society, 2016)
      We analyze the dynamics of Bose polarons in the vicinity of a Feshbach resonance between the impurity and host atoms. We compute the radio-frequency absorption spectra for the case when the initial state of the impurity ...
    • Quantum electrodynamical torques in the presence of Brownian motion 

      Munday, Jeremy N.; Iannuzzi, Davide; Capasso, Federico (IOP Publishing, 2006)
      Quantum fluctuations of the electromagnetic field give rise to a zero-point energy that persists even in the absence of electromagnetic sources. One striking consequence of the zero-point energy is manifested in the Casimir ...
    • Quantum Electrodynamics in 2+1 Dimensions With Quenched Disorder: Quantum Critical States With Interactions and Disorder 

      Thomson, Alex; Sachdev, Subir (American Physical Society (APS), 2017-06-26)
      Quantum electrodynamics in 2+1 dimensions (QED3) is a strongly coupled conformal field theory (CFT) of a U(1) gauge field coupled to 2N two-component massless fermions. The N=2 CFT has been proposed as a ground state of ...
    • Quantum electrodynamics of accelerated atoms in free space and in cavities 

      Belyanin, Alexey; Kocharovsky, Vitaly V.; Capasso, Federico; Fry, Edward; Zubairy, M. Suhail; Scully, Marlan O. (American Physical Society, 2006)
      We consider a gedanken experiment with a beam of atoms in their ground state that are accelerated through a single-mode cavity. We show that taking into account of the "counterrotating" terms in the interaction Hamiltonian ...
    • Quantum Electronic Transport in Mesoscopic Graphene Devices 

      Allen, Monica Theresa (2016-05-14)
      Graphene provides a rich platform for the study of interaction-induced broken symmetry states due to the presence of spin and sublattice symmetries that can be controllably broken with external electric and magnetic fields. ...
    • Quantum Engineering of a Diamond Spin Qubit With Nanoelectromechanical Systems 

      Sohn, Young-Ik (2018-01-22)
      Quantum emitters are indispensable building blocks for quantum computers and networks. By entangling multiple individual quantum systems, it is possible to make overall system exponentially more powerful. Quantum emitters ...
    • Quantum Engineering with Mechanical Strain 

      Maity, Smarak (2021-07-12)
      Qubits (quantum bits) have many different physical realizations, each with their own strengths and weaknesses. Futuristic quantum networks will require carefully designed interactions between different types of qubits, ...
    • Quantum entanglement between an optical photon and a solid-state spin qubit 

      Togan, E; Chu, Y.; Trifonov, Alexei; Jiang, L.; Maze, J.; Childress, Lilian I.; Dutt, M; Sørensen, A. S.; Hemmer, Philip; Zibrov, Alexander S; Lukin, Mikhail D. (Nature Publishing Group, 2010)
      Quantum entanglement is among the most fascinating aspects of quantum theory1. Entangled optical photons are now widely used for fundamental tests of quantum mechanics2 and applications such as quantum cryptography1. Several ...
    • Quantum Error Correction for Metrology 

      Kessler, Eric; Lovchinsky, Igor; Sushkov, Alexander; Lukin, Mikhail D. (American Physical Society (APS), 2014)
      We propose and analyze a new approach based on quantum error correction (QEC) to improve quantum metrology in the presence of noise. We identify the conditions under which QEC allows one to improve the signal-to-noise ratio ...
    • Quantum fluctuations in the presence of thin metallic films and anisotropic materials 

      Iannuzzi, Davide; Lisanti, Mariangela; Munday, Jeremy N.; Capasso, Federico (IOP Publishing, 2006)
    • Quantum Fluids of Self-Assembled Chains of Polar Molecules 

      Wang, Daw-Wei; Lukin, Mikhail D.; Demler, Eugene A. (American Physical Society (APS), 2006)
      We study polar molecules in a stack of strongly confined pancake traps. When dipole moments point perpendicular to the planes of the traps and are sufficiently strong, the system is stable against collapse but attractive ...
    • Quantum Flutter: Signatures and Robustness 

      Knap, Michael; Mathy, Charles J. M.; Ganahl, Martin; Zvonarev, Mikhail; Demler, Eugene A. (American Physical Society (APS), 2014)
      We investigate the motion of an impurity particle injected with finite velocity into an interacting one-dimensional quantum gas. Using large-scale numerical simulations based on matrix product states, we observe and ...
    • Quantum foam and topological strings 

      Iqbal, Amer; Vafa, Cumrun; Nekrasov, Nikita; Okounkov, Andrei (Springer Verlag, 2008)
    • A Quantum Gas Microscope for Detecting Single Atoms in a Hubbard-Regime Optical Lattice 

      Bakr, Waseem Sulaiman; Gillen, Jonathon; Peng, Amy Wan-Chih; Fölling, Simon; Greiner, Markus (Nature Publishing Group, 2009)
      Recent years have seen tremendous progress in creating complex atomic many-body quantum systems. One approach is to use macroscopic, effectively thermodynamic ensembles of ultracold atoms to create quantum gases and strongly ...