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Browsing MIT Open Access Articles by Title

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  • Lupo, Cosmo; Pirandola, Stefano; Giovannetti, Vittorio; Mancini, Stefano (American Physical Society, 2013-06)
    Quantum communication theory sets the maximum rates at which information can be encoded and decoded reliably given the physical properties of the information carriers. Here we consider the problem of readout of a digital ...
  • Jiang, Liang; Taylor, J. M.; Nemoto, Kae; Munro, W. J.; Van Meter, Rodney; Lukin, M. D. (American Physical Society, 2009-03)
    We propose an approach to implement quantum repeaters for long-distance quantum communication. Our protocol generates a backbone of encoded Bell pairs and uses the procedure of classical error correction during simultaneous ...
  • Bennett, Charles H.; Devetak, Igor; Harrow, Aram W.; Shor, Peter W.; Winter, Andreas (Institute of Electrical and Electronics Engineers (IEEE), 2014-03)
    Dual to the usual noisy channel coding problem, where a noisy (classical or quantum) channel is used to simulate a noiseless one, reverse Shannon theorems concern the use of noiseless channels to simulate noisy ones, and ...
  • Beau, M.; del Campo, A.; Chenu, Aurelia; Cao, Jianshu (American Physical Society, 2017-04)
    We introduce a scheme for the quantum simulation of many-body decoherence based on the unitary evolution of a stochastic Hamiltonian. Modulating the strength of the interactions with stochastic processes, we show that the ...
  • Ajoy, Ashok; Cappellaro, Paola (American Physical Society, 2013-05)
    We propose a method for Hamiltonian engineering that requires no local control but only relies on collective qubit rotations and field gradients. The technique achieves a spatial modulation of the coupling strengths via a ...
  • Maccone, Lorenzo (American Physical Society, 2009-08)
    The arrow-of-time dilemma states that the laws of physics are invariant for time inversion, whereas the familiar phenomena we see everyday are not (i.e., entropy increases). I show that, within a quantum mechanical framework, ...
  • Spekkens, Robert W.; Zanardi, Paolo; Marvian Mashhad, Iman (2016-05)
    The resource theory of asymmetry is a framework for classifying and quantifying the symmetry-breaking properties of both states and operations relative to a given symmetry. In the special case where the symmetry is the set ...
  • Spekkens, Robert W.; Zanardi, Paolo; Marvian Mashhad, Iman (American Physical Society, 2016-05)
    The resource theory of asymmetry is a framework for classifying and quantifying the symmetry-breaking properties of both states and operations relative to a given symmetry. In the special case where the symmetry is the set ...
  • Jin, Dafei; Hu, Qing; Neuhauser, Daniel; von Cube, Felix; Yang, Yingyi; Sachan, Ritesh; Luk, Ting S.; Bell, David C.; Fang, Nicholas Xuanlai (American Physical Society, 2015-11)
    We demonstrate an unexpectedly strong surface-plasmonic absorption at the interface of silver and high-index dielectrics based on electron and photon spectroscopy. The measured bandwidth and intensity of absorption deviate ...
  • Qian, Xiaofeng; Liu, Junwei; Fu, Liang; Li, Ju (American Association for the Advancement of Science (AAAS), 2014-11)
    Quantum spin Hall (QSH) effect materials feature edge states that are topologically protected from backscattering. However, the small band gap in materials that have been identified as QSH insulators limits applications. ...
  • Wang, Xiaoqun; Kee, Hae-Young; Kim, Yong Baek; Yu, Yue; Chen, Gang; Savary, Lucile (American Physical Society, 2016-08)
    The Coulombic quantum spin liquid in quantum spin ice is an exotic quantum phase of matter that emerges on the pyrochlore lattice and is currently actively searched for. Motivated by recent experiments on the Yb-based ...
  • Lee, Patrick A. (IOP Publishing, 2014-08)
    I give a review of the current status of the quantum spin liquid, emphasizing the connection to lattice gauge theory, de-confinement and the emergence of novel particles and gauge fields in the low energy effective theory.
  • Potter, Andrew Cole; Barkeshli, Maissam; McGreevy, John; Todadri, Senthil (American Physical Society, 2012-08)
    We describe a new possible route to the metal-insulator transition in doped semiconductors such as Si:P or Si:B. We explore the possibility that the loss of metallic transport occurs through Mott localization of electrons ...
  • Chen, Xie; Duan, Runyao; Ji, Zhengfeng; Zeng, Bei (American Physical Society, 2010-07)
    Measurement based quantum computation, which requires only single particle measurements on a universal resource state to achieve the full power of quantum computing, has been recognized as one of the most promising models ...
  • Farhi, Edward; Gosset, David Nicholas; Hassidim, Avinatan; Lutomirski, Andrew Michael; Nagaj, Daniel; Shor, Peter W. (American Physical Society, 2010-11)
    Given a single copy of an unknown quantum state, the no-cloning theorem limits the amount of information that can be extracted from it. Given a gapped Hamiltonian, in most situations it is impractical to compute properties ...
  • Vinet, Luc; Zhedanov, Alexei; Genest, Vincent (Springer Berlin Heidelberg, 2016-05)
    The Racah problem for the quantum superalgebra osp[subscript q] (1|2) is considered. The intermediate Casimir operators are shown to realize a q-deformation of the Bannai–Ito algebra. The Racah coefficients of osp[subscript ...
  • Mohseni, Masoud; Lloyd, Seth; Rebentrost, Frank Patrick (American Physical Society, 2014-09)
    Supervised machine learning is the classification of new data based on already classified training examples. In this work, we show that the support vector machine, an optimized binary classifier, can be implemented on a ...
  • Jackiw, Roman (World Scientific Publishing, 2010-02)
    The axial anomaly is a quantum term that violates the classical conservation of the the axial current.
  • Shapiro, Jeffrey H. (Institute of Electrical and Electronics Engineers, 2009-12)
    Communication theory applied to lightwave channels is ordinarily carried out using the semiclassical theory of photodetection. Recent development of nonclassical light sources-whose photodetection statistics require the ...
  • Shapiro, Jeffrey H. (Institute of Electrical and Electronics Engineers (IEEE), 2009-05)
    Communication theory applied to lightwave channels is ordinarily carried out using the semiclassical theory of photodetection. Recent development of nonclassical light sources-whose photodetection statistics require the ...
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