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06/22/2023
Unitary Complexity and the Uhlmann Transformation Problem
State transformation problems such as compressing quantum information or...
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12/01/2022
Quantum Cryptography in Algorithmica
We construct a classical oracle relative to which 𝖯 = 𝖭𝖯 yet single-copy...
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11/02/2022
Pseudorandom (Function-Like) Quantum State Generators: New Definitions and Applications
Pseudorandom quantum states (PRS) are efficiently constructible states t...
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09/09/2022
On the computational hardness needed for quantum cryptography
In the classical model of computation, it is well established that one-w...
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12/18/2021
Cryptography from Pseudorandom Quantum States
Pseudorandom states, introduced by Ji, Liu and Song (Crypto'18), are eff...
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09/15/2021
Beating Classical Impossibility of Position Verification
Chandran et al. (SIAM J. Comput.'14) formally introduced the cryptograph...
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06/10/2020
Tight Quantum Time-Space Tradeoffs for Function Inversion
In function inversion, we are given a function f: [N] ↦ [N], and want to...
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11/20/2019
