Tsinghua University

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing 2011Show all

293 papers · 1 filter

astro-ph.IM2011★ 2 cited

A Large Area LaBr3/NaI Phoswich for Hard X-ray Astronomy

Hong Li, Jianfeng Ji, Hua Feng +2

In terms of energy resolution, temporal response to burst events, and thermal stability, lanthanum bromide doped with Ce is a much better choice than the traditional NaI(Tl) scinti…

cond-mat.other2011★ 58 cited

Quantum Stress: Density Functional Theory Formulation and Physical Manifestation

Hao Hu, Zhengfei Wang, Junyi Zhu +5

The concept of "quantum stress (QS)" is introduced and formulated within density functional theory (DFT), to elucidate extrinsic electronic effects on the stress state of solids an…

cond-mat.quant-gas2011

Fermionic superfluidity and spontaneous superflows in optical lattices

Shi-Jie Yang, Shiping Feng

We study superfluidity of strongly repulsive fermionic atoms in optical lattices. The atoms are paired up through a correlated tunneling mechanism, which induces superfluidity when…

hep-ex2011★ 42 cited

Measurement of mixing and CP violation parameters in two-body charm decays

LHCb Collaboration, R. Aaij, C. Abellan Beteta +585

A study of mixing and indirect CP violation in D0 mesons through the determination of the parameters y_CP and A_Γ is presented. The parameter y_CP is the deviation from unity of th…

hep-ex2011★ 53 cited

Measurement of charged particle multiplicities in $pp$ collisions at $s = 7$ TeV in the forward region

LHCb Collaboration, R. Aaij, C. Abellan Beteta +589

The charged particle production in proton-proton collisions is studied with the LHCb detector at a centre-of-mass energy of $s = 7$ TeV in different intervals of pseudorapid…

physics.optics2011★ 10 cited

Surface plasmon resonance under conditions of electromagnetically induced transparency

Chunguang Du

A scheme for a surface plasmon resonance system under conditions of electromagnetically induced transparency (EIT) is proposed. The system is composed of three layers: a prism, a t…

cond-mat.supr-con2011★ 564 cited

The Coexistence of Superconductivity and Topological Order in the Bi2Se3 Thin Films

Mei-Xiao Wang, Canhua Liu, Jin-Peng Xu +13

This paper has been withdrawn by the author due to journal requirement.

hep-ex2011★ 24 cited

Measurement of the $W \to e ν$ and $Z / γ^{*} \to e^{+} e^{-}$ Production Cross Sections at Mid-rapidity in Proton-Proton Collisions at $s$ = 500 GeV

STAR Collaboration, G. Agakishiev, M. M. Aggarwal +346

We report measurements of the charge-separated $W^{+ (-)} \to e^{+ (-)} + ν_{e} (ν ˉ_{e})$ and $Z / γ^{*} \to e^{+} e^{-}$ production cross sections at mid-rapidity in proton-proton collisions a…

cond-mat.supr-con2011★ 59 cited

Phases and phase transitions in two dimensional superconducting films

Weiwei Zhao, Qingyan Wang, Minhao Liu +15

This paper has been withdrawn by the author

hep-ex2011★ 95 cited

Spin-Parity Analysis of ppbar Mass Threshold Structure in J/psi and psi' Radiative Decays

BESIII Collaboration

A partial wave analysis of the $p p ˉ$ mass-threshold enhancement in the reaction $J / ψ \to γ p p ˉ$ is used to determine: its $J^{P C}$ quantum numbers to be $0^{-+}$ ; i…

cond-mat.quant-gas2011★ 13 cited

Quantum entangled ground states of two spinor Bose-Einstein condensates

Z. F. Xu, R. Lü, L. You

We revisit in detail the non-mean-field ground-state phase diagram for a binary mixture of spin-1 Bose-Einstein condensates including quantum fluctuations. The non-commuting terms…

nucl-ex2011★ 51 cited

Energy and system-size dependence of two- and four-particle $v_{2}$ measurements in heavy-ion collisions at RHIC and their implications on flow fluctuations and nonflow

The STAR Collaboration, G. Agakishiev, M. M. Aggarwal +344

We present STAR measurements of azimuthal anisotropy by means of the two- and four-particle cumulants $v_{2}$ ( $v_{2} {2}$ and $v_{2} {4}$ ) for Au+Au and Cu+Cu collisions at center of…

hep-ph2011★ 35 cited

Elliptic and Triangular Flow and their Correlation in Ultrarelativistic High Multiplicity Proton Proton Collisions at 14 TeV

Wei-Tian Deng, Zhe Xu, Carsten Greiner

The spatial configuration of initial partons in high-multiplicity proton-proton scatterings at 14 TeV is assumed as three randomly positioned "hot spots". The parton momentum distr…

cs.CC2011

Short Proofs for the Determinant Identities

Pavel Hrubes, Iddo Tzameret

We study arithmetic proof systems P_c(F) and P_f(F) operating with arithmetic circuits and arithmetic formulas, respectively, that prove polynomial identities over a field F. We es…

math.NA2011

A load balancing strategy for parallel computation of sparse permanents

Lei Wang, Heng Liang, Fengshan Bai +1

The research in parallel machine scheduling in combinatorial optimization suggests that the desirable parallel efficiency could be achieved when the jobs are sorted in the non-incr…

gr-qc2011★ 59 cited

Upper limits on a stochastic gravitational-wave background using LIGO and Virgo interferometers at 600-1000 Hz

J. Abadie, B. P. Abbott, R. Abbott +782

A stochastic background of gravitational waves is expected to arise from a superposition of many incoherent sources of gravitational waves, of either cosmological or astrophysical…

hep-ex2011★ 73 cited

Measurement of b-hadron masses

LHCb Collaboration, R. Aaij, C. Abellan Beteta +583

Measurements of b-hadron masses are performed with the exclusive decay modes B+ -> J/psi K+, B0 -> J/psi K*0, B0 -> J/psi K0S, B0_s -> J/psi phi and Lambda_b -> J/psi Lambda using…

hep-ex2011★ 20 cited

Observation of Bs -> J/ψf'2(1525) in J/ψK+K- final states

LHCb Collaboration, R. Aaij, C. Abellan Beteta +583

The decay Bs -> J/ψK+ K- is investigated using 0.16/fb of data collected with the LHCb detector using 7 TeV pp collisions. Although the J/ψϕ channel is well known, final states at…

hep-ex2011★ 68 cited

Measurement of the B^0_s - \bar{B}^0_s oscillation frequency Delta m_s in B^0_s -> D_s^-(3) pi decays

LHCb Collaboration, R. Aaij, C. Abellan Beteta +579

The B^0_s-\bar{B}^0_s oscillation frequency Delta m_s is measured with 36 pb^{-1} of data collected in pp collisions at \sqrt{s} = 7 TeV by the LHCb experiment at the Large Hadron…

nucl-ex2011★ 39 cited

Directed Flow of Identified Particles in Au + Au Collisions at $\sqrtsNN = 200$ GeV at RHIC

the STAR Collaboration

STAR's measurements of directed flow ( $v_{1}$ ) around midrapidity for $π^{\pm}$ , K $^{\pm}$ , K $_{S}^{0}$ , $p$ and $p ˉ$ in Au + Au collisions at $\sqrtsNN = 200$ GeV are presented. A…

hep-ex2011★ 90 cited

Differential branching fraction and angular analysis of the decay $B^{0} \to K^{* 0} μ^{+} μ^{-}$

LHCb Collaboration, R. Aaij, C. Abellan Beteta +585

The angular distributions and the partial branching fraction of the decay $B^{0} \to K^{* 0} μ^{+} μ^{-}$ are studied using an integrated luminosity of $0.37 f b^{- 1}$ of data c…

hep-ex2011★ 133 cited

Measurement of the CP-violating phase phi_s in the decay Bs->J/psi phi

LHCb Collaboration, R. Aaij, C. Abellan Beteta +585

We present a measurement of the time-dependent CP-violating asymmetry in B_s -> J/psi phi decays, using data collected with the LHCb detector at the LHC. The decay time distributio…

cond-mat.str-el2011★ 360 cited

Spin Liquid Ground State of the Spin-1/2 Square $J_{1}$ - $J_{2}$ Heisenberg Model

Hong-Chen Jiang, Hong Yao, Leon Balents

We perform highly accurate density matrix renormalization group (DMRG) simulations to investigate the ground state properties of the spin-1/2 antiferromagnetic square lattice Heise…

cond-mat.str-el2011★ 41 cited

Exact Spin Liquid Ground States of the Quantum Dimer Model on the Square and Honeycomb Lattices

Hong Yao, Steven A. Kivelson

We study a generalized quantum hard-core dimer model on the square and honeycomb lattices, allowing for first and second neighbor dimers. At generalized RK points, the exact ground…

A Large Area LaBr3/NaI Phoswich for Hard X-ray Astronomy

Quantum Stress: Density Functional Theory Formulation and Physical Manifestation

Fermionic superfluidity and spontaneous superflows in optical lattices

Measurement of mixing and CP violation parameters in two-body charm decays

Measurement of charged particle multiplicities in pp collisions at s​=7TeV in the forward region

Surface plasmon resonance under conditions of electromagnetically induced transparency

The Coexistence of Superconductivity and Topological Order in the Bi2Se3 Thin Films

Measurement of the W→eν and Z/γ∗→e+e− Production Cross Sections at Mid-rapidity in Proton-Proton Collisions at s​ = 500 GeV

Phases and phase transitions in two dimensional superconducting films

Spin-Parity Analysis of ppbar Mass Threshold Structure in J/psi and psi' Radiative Decays

Quantum entangled ground states of two spinor Bose-Einstein condensates

Energy and system-size dependence of two- and four-particle v2​ measurements in heavy-ion collisions at RHIC and their implications on flow fluctuations and nonflow

Elliptic and Triangular Flow and their Correlation in Ultrarelativistic High Multiplicity Proton Proton Collisions at 14 TeV

Short Proofs for the Determinant Identities

A load balancing strategy for parallel computation of sparse permanents

Upper limits on a stochastic gravitational-wave background using LIGO and Virgo interferometers at 600-1000 Hz

Measurement of b-hadron masses

Observation of Bs -> J/ψf'2(1525) in J/ψK+K- final states

Measurement of the B^0_s - \bar{B}^0_s oscillation frequency Delta m_s in B^0_s -> D_s^-(3) pi decays

Directed Flow of Identified Particles in Au + Au Collisions at $\sqrtsNN = 200$ GeV at RHIC

Differential branching fraction and angular analysis of the decay B0→K∗0μ+μ−

Measurement of the CP-violating phase phi_s in the decay Bs->J/psi phi

Spin Liquid Ground State of the Spin-1/2 Square J1​-J2​ Heisenberg Model

Exact Spin Liquid Ground States of the Quantum Dimer Model on the Square and Honeycomb Lattices

Measurement of charged particle multiplicities in $pp$ collisions at $s = 7$ TeV in the forward region

Measurement of the $W \to e ν$ and $Z / γ^{*} \to e^{+} e^{-}$ Production Cross Sections at Mid-rapidity in Proton-Proton Collisions at $s$ = 500 GeV

Energy and system-size dependence of two- and four-particle $v_{2}$ measurements in heavy-ion collisions at RHIC and their implications on flow fluctuations and nonflow

Differential branching fraction and angular analysis of the decay $B^{0} \to K^{* 0} μ^{+} μ^{-}$

Spin Liquid Ground State of the Spin-1/2 Square $J_{1}$ - $J_{2}$ Heisenberg Model